502 Big Block Chevy Advanced Tuning on our DynoJet!

[@terryeustice5399]

Rich it’s amazing what technology can do. The Dyno is a great tool in your box. That car does sound amazing. Thank you for sharing. 💯👊👍

[@SeanJoseph-s2s]

The dyno segments are great... thanks...🔧🔧👍

[@samramondelli9959]

Rich, make sure it has the squirter screw with the hole to feed fuel to the squirter. FYI, Nova is driving good. Thanks

[@rickharper1497]

I agree, a double pumper would be better. Beautiful car!!

[@pinkymccauley7480]

would like to see a 1" spacer and a 850 double pumper on it

[@WiSeNhEiMeR-1369]

Thanks LUCORE, COOP ...

[@SteveMacdaddy]

What a beauty. I know she's getting a great spa treatment at Lucore Automotive!

[@patriciahamby996]

Beautiful car ❤❤❤❤❤

[@tbirdracer460]

Thinking that 502 needs a 4150 1000 cfm carb. That little restrictor plate is smothering that beast

[@pockets5628]

12.5 is rich at full throttle actually. 12.8 is better and plenty safe for with that engine and most with heads like it has. I would have increased timing to 36 at full advance first in that engine. Your accel pump bolt/spring setting, the .015” measurement mentioned is the travel you want left in the diaphragm at full throttle so it’s not bottomed out. NOT clearance at idle/closed throttle. Lengthen the bolt until at wide open the spring starts to collapse, that’s because the diaphragm is bottomed. Then tighten the bolt/nut one flat on the nut at a time until the spring doesn’t compress, and you can slide a .015” feeler gauge between the head of the bolt and the lever, without the spring compressing. There should be zero freeplay. And in the secondary, get rid of the power valve, put a plug in and increase the main jets 6 sizes instead. Make 100% sure the throttle is pulling the carb wide open, because on a vacuum secondary, if the primary doesn’t open all the way, the secondary won’t open properly.

[@mikeburnett7028]

What gear are you making your pulls in? Just in case I want to make a pull on a mobile dyno. I’m running a big block 406 Chevy with a 5 speed in my 71 Nova, with a 400hp Fi Tech throttle body. Just filled up my tank yesterday and got 19mpg. Good cruiser for power tour.

[@LucoreAuto]

You always want to pull in the gear that is 1:1 in this car that's 4th

[@mikeburnett7028]

@@LucoreAuto thanks Rich. I added more info to my first comment

[@SteveMacdaddy]

You know all you gotta do is call Bill i bet the oldman could help with phone call?

[@98Z28LS1]

👍👍

[@johnmilner7603]

With the background noise you should get a wireless mic attached to your shirt.

[@Eastendhunter9]

hey Rich would you convert your buick to rear disc? is it worth it n was the braking that much better?

[@richardlucore6813]

It will be getting front disc's but I will be keeping the aluminum rear drum brakes. It will be a manual master cylinder. Some things are in the works for the 65 skylark.

[@fordman7502]

bill from old man garage seems to know what he is doing maybe ask him for help

[@NJCarCruise]

that 502 needs a double pumper !

[@richardlucore6813]

Correct.... It really should have a mechanical secondary due to it being a manual trans.

[@drewwest1337]

What mufflers does it have?

[@johnmilner7603]

Looking under it looks like the drone Flow Masters.

[@johnmilner7603]

Double pumper isn’t for the street. If it was then GM would have used them.

[@hollowpoint357sw4]

Can you really tune a carb on a dyno with no load under the engine? Old man Bill is the best man for the job to tune a carb. He makes his adjustments then test drives it under load then makes final adjustments after that.

[@curtisendicott5989]

Ooooooo

[@58sportsuburban]

The car is on a load on the dyno…. How do you think it computes the numbers?

[@michaelerickson1518]

Wants a spred bore

[@mwhitelaw8569]

An old type of holley carb they made in the 80's

[@kennyhayes8488]

That 502 needs 50 cc Pumps not 30

[@johndillinger8482]

youre all over the place with this carb and no change.

[@vr6swp]

An additional 40whp is no change?

[@johndillinger8482]

@@vr6swp to what?350?sad

[@LucoreAuto]

You'll have to forgive John, he's never happy about anything. 40whp and much safer AFRs doesn't qualify for him ;)

[@mikemontgomery7337]

Maybe the carb is junk ??