How to carburetor swap a foxbody from efi without "ruining it", the easy way.

[@vrm86gt]

I am putting this in my liked videos, great budget way to do a carb swap, so many people say you can't use the efi in-tank fuel pump, but your T- before the regulator setup is genius and makes total sense! Thanks Adam!

[@dirtyburd71]

Will be doing this to my injected 5.0, '88 Country Squire. You really put some great info here that will simplify my plan. Thanks!!

[@GroverBoysRacing777AdamGrover]

No problem! Good luck w your project!

[@Buck_Em_Garage]

You helped me a couple years ago with this advice, works great. I also wired in my harness to operate all of the factory gauges. I got pig tails from a donor car so again, nothing hacked. Thanks!

[@vrm86gt]

Hey there, can you show how you made the factory gauges work with carb swap?

[@sbf_fox2434]

I like the into you gave for the TFI wiring with a toggle and the T for the fuel lines before the regulator.

[@dontnewyorkmyflorida]

I put a 351 Windsor in my 87 GT and a quick fuel step down fuel pressure regulator and I didn't touch the computer or the distributor wiring all I did was put a carburetor and drop the fuel pressure and this thing runs great, I made a hybrid distributor out of a 351 distributor and a 302 distributor, all of the gauges work

[@GroverBoysRacing777AdamGrover]

Yeah thats one way you can do it aswell. Ive done the same thing, just alot of wires under the hood lol

[@RustyRacers]

I just did this to my car and so far everything you said worked great 👍

[@GroverBoysRacing777AdamGrover]

Glad to hear it! Enjoy and best of luck.

[@jdrods1519]

Awesome stuff brother!!! I finally got my surge figured out on mine. Damn fuel pressure regulator was set to high. (My fault) but I’ll definitely be going carb on the news Fox I got.

[@79beans347]

That's a cool bit of information that should surely help someone

[@GroverBoysRacing777AdamGrover]

Thankyou. Hopefully someone gets somthing out of it lol

[@metalbill]

Fox Bodies are cool. I love Fairmonts!

[@mccoma11]

I've been asking about this type of fuel line/regulator setup on foureyedpride the last few days. Pretty convenient that you put out a video on it! Any idea how much pressure is in the feed/return line when it's running? When I do this, I plan to install a fuel pressure gauge before and after the regulator.

[@GroverBoysRacing777AdamGrover]

Im not sure how much pressure goes through the return side. I do however know you can get about 60psi or so out of a stock efi pump. Ive never put a gauge on it to see, aslong as have steady 6.5 psi at the carb im happy lol glad this was able to help you. Im also a member of that page on facebook lol

[@jimmyrwilkesjr5127]

Hello Adam , young man YOU have convinced me to swap to a carb set up, I like the fuel injection systems and they're ok and relatively easy to work on,but the carb just gives you a feeling of if I may say, Seat of the pants ,I think that carbs are "user" friendlier unless they are related to Diesel lol,I am a sub to you and your dads channel, I have a all original 93thunderbird with less than 143k all highway miles 1 owner car

[@GroverBoysRacing777AdamGrover]

Awesome thanks for watching sir! And yeah carb def has a strong feel where the efi seems less responsive and laggy. Thats why i like carbs too. This setup is easy enough to switch back and forth so it doesnt hurt anything if u do go carbed this way. Thats why i like doing it this way. Makes it simple and easy

[@andrewstehling9697]

With the after market fuel pressure regulator an the fuel hoses you need of course

[@GroverBoysRacing777AdamGrover]

The fuel line adapter/conversion kit comes w the an hoses aswell.. as mentioned in the video. eliteracefab.com/products/russell-performance-1987-93-5-0l-ford-mustang-fuel-hose-kit?currency=USD&variant=44290203123880&Google%20Shopping&stkn=7f8b245c933f&gad_source=1&gclid=CjwKCAiAgeeqBhBAEiwAoDDhnzexmDidgWM5q5tzsaplVky-xtrldHYMKUXAwQhnTsOYHpRerbgK4hoC76cQAvD_BwE

[@drtb69]

Might do this with my 91' lx, the 5.0 is coming out and 351w based 414 c.i roller cam bad boy going in , will try a 950 holley. Holley style makes best power. The efi and pcm mass air tuning for my engine is looking like a pain. So i have a few intakes and carbs sitting around anyhow 😂

[@GroverBoysRacing777AdamGrover]

Nice, good luck w it, it should run good!

[@NoFox_Given]

Never used a TFI like that … I might try it 😂that’s pretty cool just have to keep a spare module in the glove box.

[@Stealth_Gamer92]

This has me wondering how much the difficulty difference is(or isn't) for my 93 Thunderbird lx...

[@sbf_fox2434]

You can buy a re-pop factory throttle cable bracket that bolts to the intake for about the same or less than the bracket you are using. One source is LMR. #LRS-9758BRKT-K

[@GroverBoysRacing777AdamGrover]

Yeah for the price these look alot nicer in my opinion so i just get this style and modify them

[@taylor-made8992]

Love the video, do you have a link to those fuel lines, Ive kinda researched them but I can’t find the ones your showing in the video.

[@paulj541]

I'm glad you got that "rats nest" out of the engine.

[@modelman8139]

Link for conversion kit?

[@benroot2513]

Great video! Thoughts on swapping to carb and keeping the AC without “ruining the harness”?

[@GroverBoysRacing777AdamGrover]

Would have to get a diagram, and buy the pigtails you need to make a harness for the ac

[@kennypearson393]

What two wires are you grabbing to run to a toggle for the fuel pump relay? Is it a power and ground? What color are the wires?

[@GroverBoysRacing777AdamGrover]

I usually take a test light, find the hot wire then make a jump wire and shove it into the hot wire i found and jump it across the plugs to find the pump. Then i run my toggle to both of those. The toggle goes inbetween them if that makes sense. Or u can find another source thats hot to go to your switch and just run one wire to the pump wire in the relay pig tail.

[@allenhouse7224]

Great video. Hey question what alternator bracket is that? It looks super similar to mine that I got from Jegs. But I cant get my 3g alternator with a very similar bracket to line up at all. My alternator is about 3 teeth to far forward and keeps chewing up my belts and I think has messed up my alternator.

[@GroverBoysRacing777AdamGrover]

Most aftermarket brackets require modification. I believe this is a march pulley setup on this car, but if your alternator goes in you can take the shim and shorten it to get the alignment you need for your setup

[@allenhouse7224]

@@GroverBoysRacing777AdamGrover yeah thats what I was thinking about doing. Grinding the spacers down to bring the pully in. Was just curious if I bought the wrong one or something lol. Thanks for the reply and thanks for the content.

[@GroverBoysRacing777AdamGrover]

@@allenhouse7224 any time, yeah thats what i usually do is modify them to work lol.

[@93CherokeeXJ]

In the process of carb swapping a 87 crown vic, using a vacuum advance distributor and streetfire box. It calls for the original coil positive wire (from ignition key) to connect to the box. I have found two 12v switched wires that are Red/LG but doesnt power the box up. All grounds have been checked and are good. Maybe the Red/LB wire is the one I need to use?

[@GroverBoysRacing777AdamGrover]

Ive honestly never used a streetfire box. I have had trouble with msd boxes needing to use different wires from the box.

[@martinez6037]

hey great video it explained alot i was wondering did you keep the original fuel pump inside the tank ?? i got an 84 im trying to swap over to an eddelbrock 4106 carb

[@GroverBoysRacing777AdamGrover]

We actually put a 255 fuel pump in, but you can use the original pump as well

[@Gkitchens1]

I didn’t think about lack of rev limiter. I guess I’ll need to put a 2 step in. Although the one I’m planning to buy has a Chevrolet hei dizzy cap so who knows. It looks just like the one in the video too pretty much lol

[@LesMorrisracing]

Stopped by ! Hi!

[@hackitgarage6503]

Only thing the EFI in old ford's is good for is key turn starts when the EFI components start failing it's never ending diagnostics.i have an old town car that won't start until you hit it with either after it stays running.ive been testing components trying to figure it out but no luck so far

[@GroverBoysRacing777AdamGrover]

Possibly a fuel filter, bad regulator, weak pump, or the line from the pump to the carriage.. They'll usually run with weak fuel pressure but won't start. If u get it figured out lmk what it was

[@dontworryaboutit8445]

Where can I find the front accessory drive bracketry and pulleys

[@truyumz2595]

I have a 91 f250 7.5l efi sucks ballz nothing but trouble E40d would a carb swap bring this beast back to life ?

[@GroverBoysRacing777AdamGrover]

The right intake and carb combo can net usually a 50 hp gain on any ford motor compared to factory efi. On a big block 460 with an 850 and a nice dual plane its around 100 or so. So yes it would wake it up putting a carb on it

[@truyumz2595]

@@GroverBoysRacing777AdamGrover what would I need to do with the E40d will it work

[@GroverBoysRacing777AdamGrover]

@@truyumz2595 that I'm not sure. I think they sell a controller for it, may be able to keep the efi harness hooked up for your ignition, i would think it either works off of rpm or speed sensor. Ive never ran the over drive automatics to be honest so i really couldn't tell you based off of experience. May find something on it on Google

[@truyumz2595]

@@GroverBoysRacing777AdamGrover thank you

[@truyumz2595]

@@GroverBoysRacing777AdamGrover excuse my questions if they seem ignorant you, your knowledge on this is far superior than mine. Is it a good or dumb idea to use the E40d or is there a better maybe a more cost effective approach to this aspect of the conversion?

[@benjaminhunt2395]

Man wish I had know this when I did mine 10 years ago went with Holly 670 street Avenger unilite distributor ellerbrock f4b intake only thing I'm never been positive as I get transmission set right have a aod

[@GroverBoysRacing777AdamGrover]

Yeah theyre finicky with setting the passing gear and such

[@charlesellenberger1352]

I see now after reading some of the comments, you said 36* and run a toggle switch to the pos side of the coil. You say if engine is hot crank with the switch off then flip it on start while cranking CORRECT? One more question what about a rev limiter if you’re NOT Using an msd box?

[@GroverBoysRacing777AdamGrover]

Yes that's correct crank it and as youre cranking pop the toggle on, and you wont have a rev limiter. I usually dont use one or set it really high anyway so it never bothered me

[@charlesellenberger1352]

thanks for the reply

[@garrybearyaf1730]

About to carb swap my 89 man, Great video. Could you link me the AN hose conversion kit you used for the factory fuel line.

[@caseygtr]

I am thinking this too. About to put one on the road and realize how much work there is into getting the EGR/smog system put together, the 89 I've got doesn't have cats and I don't think the smog system will work without that. I can rig it to work without the system, but other people have bitched about the motor running like crap. I can get something like a megasqirt ecu and then have it tunned, but that's a lot of money.

[@garrybearyaf1730]

@@caseygtr I did carb swap the car and it’s the best choice I’ve made haha, wiring was so easy, took a week and a half or so to get it all complete waiting on parts and such. But super cheap and definitely worth it.

[@caseygtr]

@@garrybearyaf1730 thing is I have basically all the parts, I even have a fuel regulator. I am going to give the FI a shot, turns out I out need the smog stuff, but I do need the egr and I think I have the whole vacuum and wiring figured out, but if that shit gives me trouble, it's getting a carb.

[@garrybearyaf1730]

@@caseygtr yeah man if it doesn’t work out, you are always going to be able to sell the efi setup. People are always looking for efi swaps and all that. But let me know how it guys for you man, definitely interested.

[@outfitsgarage88]

Cool information.

[@NotchFox]

I guess I am dense...I just don't see the advantage of carb over EFI. I have EFI on my 89 notch, and carb on my 57 Chevy. Considering all the work you did to convert to carb, please explain what you gain? I know all the issues I have with my carb! Thanx!

[@GroverBoysRacing777AdamGrover]

Gain cheaper easier hp, easier to work on, clean engine bay, less things to go wrong/bad, compared to a 30 year old efi setup with broken wires and such. Im not against efi, but for some carburetion is the easier route. You may not see the point, but theres alot of people who want to convert to carb without hacking their mustangs up but dont know how to. Thats what this video is about.

[@vrm86gt]

Adam one other quick question, when I pulled the harness out there was 3 wires running all the way to driver side kick panel? what are those 3 wires for, it doesn't seem they are going to the ecu but are bundled in to the ecu harness, do i just leave that disconnected in the driver side kick panel?

[@GroverBoysRacing777AdamGrover]

That doesn't sound factory so I can't give you a forsure answer on that. Id have to see them. Message me on my Facebook if you have one. Usually anything that goes to the engine harness is no longer used. The headlight and alternator harness is usually seperate which those you will still use

[@jamespotter9588]

Those I think go to door speakers, power windows, power locks, etc. I looked at mine, thats where they seem to go.

[@vrm86gt]

Adam, what 2 wires on the fuel pump relay?

[@GroverBoysRacing777AdamGrover]

I use a test light to find the power source then I jump the others to see which one kicks on the pump and locate it that way. Then I depin the 2 out of the connector and use male connectors to slide in the terminals so nothing gets cut, and u can either heat shrink or tape them up so nothing shorts out

[@vrm86gt]

@@GroverBoysRacing777AdamGrover thanks, I will try that!

[@vrm86gt]

ok got mine wired today, pink and black from relay goes to the intank pump, I ran a 12v switched to that and it works, my relay had no power / 12 v switched or anything going to it at all, I think those 3 wires I mentioned above that ran from driver kickpanel to the ecu area must have been the main power. Anyways just put a spade terminal on the 12v switched and plugged it into the pink and black female terminal, taped it all up and wroking well so far! thanks Adam!

[@GroverBoysRacing777AdamGrover]

@vrm86gt yeah that's how I usually do it or I depin the connector and use a spade terminal into that female connector that ford puts on the wire and wrap em up. Glad you got it!

[@TommyT236]

Thinking of doing this. Would it work on a automatic car. 90 lx. Thanks!

[@GroverBoysRacing777AdamGrover]

It will, you just need to make somthing for the kick down on the transmission.

[@davidpound2375]

I did a carb setup. Now I’m getting nothing on the dash or fuel pump. I get a click when trying to start. I’m getting power to the switch and to the starter solenoid but not on the dash. Do the wires need to be in an order on the solenoid? A week ago I had everything working. All I did was take out the motor harness

[@GroverBoysRacing777AdamGrover]

If you removed the engine harness the dash wont work. You'd have to look at a schematic, get a pig tail, and pin the wires for the gauges in the dash. If the engine is just clicking and not cranking over, you may need more engine to chassis grounds. Take a pair of jumper cables and put one side on the engine (intake bolt, bell housing boltalternator bracket bolt or clean metal of some sort) then connect the other side to the chassis or even one to ground on battery and other to chassis (clean metal, bolts going into frame rails, firewall, or inner aprins). Thats a quick way we use to rule out inadequate chassis grounds. As for starter solenoid wiring, one side should be a few hot wires 1 from battery, along with a few others, other side should be 1 wire to the starter, then theres 1 wire for the small post that just pushes on unless someone changed it to make it bolt onto the small post. Google your year (mustang solenoid wiring) and you should be able to find it to verify wiring order. I can almost garuntee its not enough ground cables though. Good luck and let me know how you make out!

[@davidpound2375]

@@GroverBoysRacing777AdamGrover so I did that and I’m still getting a click. I checked with a light, I have power to the ignition switch and power to the solenoid. I put the light on the red/blue small wire. I hit the key to start the car and the light worked. So I know I have power to the wire when it’s in the crank. And when I say motor harness I meaning the passenger side harness is gone. I still have all the wires on the driver side. Like the yellow, the black/white with the little box, and a few others. I also tried jumping the solenoid and all I’m getting is spark and I tried two different solenoids. And this is on a 1987 lx 5.0 t5 conversion. It was a 4cy automatic. Oh let me add I’m running a msd6al box and a hei distributor

[@charlesellenberger1352]

What timing do you start with on the locked out tfi? distributor

[@GroverBoysRacing777AdamGrover]

Depends on the combo, but i usually run 36° on an e7 stock bottom end 87-92 engine

[@charlesellenberger1352]

Thank you for the reply

[@GroverBoysRacing777AdamGrover]

@charlesellenberger1352 no problem. I appologize i didnt reply sooner, i never got the notification.

[@charlesellenberger1352]

No problem 36deg is what I thought would be a good starting point. Thanks again

[@GroverBoysRacing777AdamGrover]

@charlesellenberger1352 yeah 36 is usually the ticket where they like it. Depends on the heads and combination mostly though

[@kennypearson393]

Does the alternator need to be rewired at all to work? I’m in the middle of the swap trying to figure out what all I need to do to make stuff work.

[@GroverBoysRacing777AdamGrover]

Alternator wiring is part of the headlight harness if i remember correctly so no. Once you pull the efi harness out youll be able to see. I usually convert over to a 3g alternator from a 94-95 mustang gt which will require a rewire. But the schematic can be found online

[@kennypearson393]

@@GroverBoysRacing777AdamGrover thanks! Appreciate the reply!

[@GroverBoysRacing777AdamGrover]

@@kennypearson393 no problem, good luck with your project!

[@YaseemHambrick-u5w]

Did you get more power

[@GroverBoysRacing777AdamGrover]

This particular car were not sure it didn't run prior. But it depends what you're going from and to on the power increase. Personally I think a carbed car is easier to go faster with.

[@f-bodyjon2189]

Did you end up modifying the fuel regulator plumbing? Looks like you have the feed and return lines plumbed into the return port on the regulator.

[@GroverBoysRacing777AdamGrover]

Yes, you run the return before the regulator so the dead head regulator doesnt spike. This allows you to control the pressure from 3-60psi since its a high pressure efi pump.

[@f-bodyjon2189]

@@GroverBoysRacing777AdamGrover this doesn’t make sense. If you install a return before the regulator, the fuel is not being regulated unless you’re spiking pressure because your return is too small.

[@GroverBoysRacing777AdamGrover]

@@f-bodyjon2189 the car runs and i can adjust the pressure from 3psi to w.e. the regulator will allow me to adjust it to due to the spring and diaphragm inside.. the return lines are smaller than the feed, this car has the stock fuel system upto the an lines that i installed to where it supplies the engine. And as for the regulator, it is a dead head 3 port holley regulator. There is no return on these style regulators. Theres no trickery or bs here. This is a setup thats garunteed to work

[@GroverBoysRacing777AdamGrover]

@@f-bodyjon2189 this is the exact regulator on this car. If you scroll down it tells you "no return" under the details www.summitracing.com/parts/hly-12-803?seid=srese1&gclid=CjwKCAjwxr2iBhBJEiwAdXECw-evRpOqWuCtg4v7ffBagBSI1OGzXtt4Avvfc2k51RhkQyRvBA3JpBoCZ-IQAvD_BwE

[@faststang85]

@@GroverBoysRacing777AdamGrover the correct way would to use an efi to carb return style regulator. They are more expensive but well worth it.

[@tylerford2651]

I noticed the coolant lines going to the heater are disconnected does this carnot have heat in the winter? No ac in the summer I want to do this swap too I just don't know all the parts like you

[@GroverBoysRacing777AdamGrover]

This car doesn't have heat or ac hooked up

[@tylerford2651]

Thanks for the response I've been looking up parts for the past 2 hours trying to figure out what I need and it's so broad, I'll have to watch your video again and again and listen step by step so I can get a list. I was gonna go through lmr or cj pony parts but those carb intake kits are like 1000.00 and you still need fuel lines

[@GroverBoysRacing777AdamGrover]

@@tylerford2651 yeah u can do it way cheaper than 1k if you source everything correctly and do it yourself etc. Esp if you sell the efi stuff.

[@glennramsey917]

Hey man do you think tha distributor trick would work with the 460 distributor in the trucks too ??? Im putting one in a mustang and dont have a msd box to go with my aftermarket dist !!!

[@GroverBoysRacing777AdamGrover]

I plan on using this setup on my dads 460 build, so i dont see why it wouldnt. Id assume wiring would be the same. Ill be trying it lol

[@glennramsey917]

@@GroverBoysRacing777AdamGrover im going to aswell .. if it works …GOOD … if not then its just too bad ..lol

[@GroverBoysRacing777AdamGrover]

@@glennramsey917 i dont see why it wont

[@GroverBoysRacing777AdamGrover]

@@glennramsey917 just make sure the distributor gear is setup for your camshaft so u dont mess anything up.

[@glennramsey917]

@@GroverBoysRacing777AdamGrover yes sir … im 49 years old i have ben building motors since 1988 …i know the difference in gears n such but my downfall is electric stuff. This video has changed the game !!!!

[@RustyRacers]

What exactly did you wire the fuel relay wires to?

[@GroverBoysRacing777AdamGrover]

I run them to a toggle switch. One side is a hot wire, the other leads to the fuel pump

[@codan35]

How would I get the fuel pump relay for 93 to work since it’s on engine harness?have to keep it and computer?

[@GroverBoysRacing777AdamGrover]

Would have to find the harness where the tank plugs into the body harness and make your own harness and wire itbto either a key on power source or to a switch

[@dj3356bell]

What distributor are you using, is this the stock one that came with the car, I have a 1990 Mustang GT , can I use the stock one ?

[@GroverBoysRacing777AdamGrover]

Yes that's correct

[@dj3356bell]

@@GroverBoysRacing777AdamGrover , where did you buy the adapter that plugs into the stock one and what ignition box are you using

[@GroverBoysRacing777AdamGrover]

@@dj3356bell no ignition box needed, the tfi will run the ignition. But you can use an ignition box with it if you want to. Any msd box will work. I like using a msd digital 6 part# 6530, this bix will allow you to do a start retard and a custom timing map etc. For the distributor plug you can go on google and type in "1986-93 mustang distributor pig tail" and itll pop up. Theres a few different places you can order them through. I believe this one was ordered from ebay.

[@TheJMan1K]

Does the tach work?

[@GroverBoysRacing777AdamGrover]

None of the factory gauges work except the fuel gauge, volts gauge, and speedo unless you pin into the harness and wire them up

[@RustyRacers]

With the locked out timing when finding tdc do i set to 0* then turn distributor or do i set it to the degree i want then drop distributor in ?

[@GroverBoysRacing777AdamGrover]

I use a digital timing light and use 0 on the balancer and turn the distributor to the desired timing set on my light.

[@GroverBoysRacing777AdamGrover]

Tdc doesn't change with locked out timing.. distributor gets dropped in the same as it always would at 0°

[@RustyRacers]

Thanks i was lil confuzzeled with the locked out timing and no video or form could answer the question 😂

[@RustyRacers]

Thanks alot the car runs awesome now i didnt know what i was gonna do with the efi system being a turd now i dont have to worry bout it and it just works so happy to have my car back

[@GroverBoysRacing777AdamGrover]

@@RustyRacers good to hear man. Enjoy it!

[@kevincraig5311]

Just for clarity…if the regulator fails to work won’t the fuel pressure spike regardless of the return

[@GroverBoysRacing777AdamGrover]

Not sure what you mean by failing to work, like a bad regulator?

[@kevincraig5311]

Yes, if the regulator goes bad at some point will the fuel pressure spike and wash my cylinder walls with gasoline?

[@GroverBoysRacing777AdamGrover]

@kevincraig5311 usually when they go bad they don't build enough pressure. But if it did happen to spike, it'd be the same amount of gph or lph going through it regardless of its efi or carbed..

[@cbcb2960]

What was the name of the pigtail on the dizzy you never said name or place

[@GroverBoysRacing777AdamGrover]

You can order it through any parts store or online, 86-93 mustang gt 5.0 distributor pig tail..

[@alissaanglin1871]

I would like more info on this also. Is it just a regular factory pigtail that you are modifying some way? I know you said you depinned some wires.

[@GroverBoysRacing777AdamGrover]

@@alissaanglin1871 you can use a factory or a replacement pig tail for any 86-93 ford mustang 5.0, then you depin the top 3 wires or you can cut them since they are not used. I depin them for cleanliness

[@hkpoweralajmi5170]

Do you have the part number for the t regulate

[@GroverBoysRacing777AdamGrover]

The t or the regulator?

[@stephenkrause4528]

How does it run with the timing locked out at 38 degrees? About the same as an EFI car?

[@GroverBoysRacing777AdamGrover]

36 degrees, starting is hard usually once its to temp but they run the best at 36. I usually put the ignition on a toggle swotch and crank the engine over then hit the ignition to start. Or use a msd digital msd box w a start retard

[@alldabeanzracing9650]

@@GroverBoysRacing777AdamGrover or just toss on a duraspark system on it...

[@GroverBoysRacing777AdamGrover]

@@alldabeanzracing9650 you could if you feel like spending more money and want extra boxes for no reason with a vacuum advanced distributor and rewiring everything for the box..

[@Gkitchens1]

I’m getting ready to buy a carb swapped fox so I’m watching videos to see how to do it right so I can see what got bubba’d when i buy it.

[@jessejames1106]

Is this a bypass regulator? I noticed the t and it made me curious?

[@GroverBoysRacing777AdamGrover]

No its a dead head holley regulator

[@jessejames1106]

@@GroverBoysRacing777AdamGrover I just bought a bypass regulator and I believe the t is not needed. is that correct?

[@GroverBoysRacing777AdamGrover]

@@jessejames1106 thats correct along as you can get the pressure down around 7psi itll be fine. This is just a cheaper way of doing it

[@jessejames1106]

Thanks for your help!

[@AndrewJohnson-b2r]

i am in the middle of carb swapping my 86 GT, i got the intake,carb, and fuel lines all installed and getting a consistant 6psi to the carb. the car wont start and i cant figure out why. it ran pretty decent right before i swapped it! any ideas on why it wont start?

[@GroverBoysRacing777AdamGrover]

Is the tfi for the distributor wired correctly? The red wire jumps to the power side of coil and to a key on power or a toggle switch. If you have it to a key on source, make sure the piwer source has power while the key is cranking, not just when key is on. I made this mistake years ago and chased it for hours lol

[@AndrewJohnson-b2r]

@@GroverBoysRacing777AdamGrover i just plugged my stock one back in like normal, that might be the problem right?

[@GroverBoysRacing777AdamGrover]

@@AndrewJohnson-b2r if the computer and harness is still in the car hooked up factory, it should still work, id make sure the distributor is in top dead center

[@AndrewJohnson-b2r]

@@GroverBoysRacing777AdamGrover yeah everything factory is hooked up and still nothing

[@AndrewJohnson-b2r]

And the distributor is at tdc

[@brandontaylor9601]

I have a 86 lx I’m trying to swap to carburetor from efi I have a 84(carb car) that I’m using for parts is there anyway I can use it’s ecu and harness? Trying to keep it simple and have everything work(gauges,key, etc.) I’d appreciate any feedback

[@GroverBoysRacing777AdamGrover]

For the gauges youd have to trace what pins in your harness plugs go to what gauges you want to work. The ecu doesnt control any gauges, theyre pinned from the body harness. So the ecu and engine harness can be pulled out or you can use your current engine harness and depin the wires you dont want to use.

[@brandontaylor9601]

@@GroverBoysRacing777AdamGrover metaphorically speaking would I be able to use the 84 harness with the 86 ecu and have everyone work or are the plugs different so I’d just have to depin the 86 harness

[@brandontaylor9601]

Also sorry I’m new to this it will be my first carbureted vehicle

[@GroverBoysRacing777AdamGrover]

@@brandontaylor9601 carbureted vehicles don't use an ecu. So no you couldn't. If you'd like to message me on fb you can do so and i can get into further detail for you

[@brandontaylor9601]

@@GroverBoysRacing777AdamGrover I would appreciate that a lot actually

[@andrewstehling9697]

Why not just live the factory engine harness init an just run the wiring from each pin to your oil temp gauge an tech. There with using factory computer that's how I would do that

[@nissanbrown6144]

I would never ever go from efi to old ass carb it sucks

[@christopherbutcher5373]

How did you wire up the alternator?

[@GroverBoysRacing777AdamGrover]

@@christopherbutcher5373 just used the factory alternator harness. That has nothing to do with the pcm/engine harness.

[@christopherbutcher5373]

I have the factory harness connected to the alt but it isn't charging tge battery. The harness appears to be in by a previous owner so im not sure if its correct. I can send you pictures in the morning. ​@GroverBoysRacing777AdamGrover

[@GroverBoysRacing777AdamGrover]

@@christopherbutcher5373 is the alternator good?