How to Tune a Carburetor - No AFR

[@johnweaver8470]

GMC is running like a champ thanks for the ride along

[@MuscleCarSolutions]

@@johnweaver8470 it was much closer than I anticipated. But that’s what happens when you stop assuming and do the work! It’s nice to have it running so well!

[@VinoRatRodbuilds]

Always awesome info . I know it seems simple for you, and you do explain it very clearly of what you're trying to achieve.

[@MuscleCarSolutions]

@@VinoRatRodbuilds thanks! Never know how well it will be received. I’m not the best teacher, but I try to explain it as best I can. Thank you sir!

[@MiamiZombie2012]

Perfect timing. I've been fighting with my edelbrock carb for a while now.

[@MuscleCarSolutions]

@@MiamiZombie2012 they’re extremely easy to work on. I’ve got tons of videos with lots of detail on understanding how they work and how to tune. Let me know if you have any questions. Always happy to help if I can.

[@MiamiZombie2012]

@MuscleCarSolutions I've watched a lot of your videos actually. Problem I'm having is the vacuum won't adjust. I've checked the timing, distributor position, and changed the pcv. Then I played with the fuel pressure and step down springs. The only way I can get the vacuum to react to the mix screws is if I turn the idle up to about 1300. I've set the timing higher and seen the vacuum go up. But as soon as I set the idle speed back down, I'm back to square one. For reference, it's a sbc 350 with a comp xtreme energy cam. I also checked my valves since the vacuum gauge is pointing at late valve timing? I'm confused and think I'm over thinking the situation

[@MuscleCarSolutions]

@@MiamiZombie2012 not completely following so I’ll ask a few questions. What is your initial timing set to? What intake are you using?

[@MiamiZombie2012]

@MuscleCarSolutions My initial timing is set to 22 adv. When I rev it up to 2500 to 3K it's 36. Distributor advance is disconnected. It's an aluminum dual plane intake from the ebay.

[@MuscleCarSolutions]

@@MiamiZombie2012 what’s the specs on the cam?

[@andrewforster4974]

I have been tuning my 500cfm carburetor edelbrock on stock ford f100 with 302 but it's already 5 degrees below freezing here in Canada so i might just swap out to my new distributor and leave it for the winter cause it's going to get a lot colder and I don't want it making more power cause roads are getting more icy by the day great video

[@MuscleCarSolutions]

@@andrewforster4974 I was complaining all weekend because it was 21 C here today. 😆 I’ve got no right. 😂😂

[@andrewforster4974]

@MuscleCarSolutions well it might be -4 f by next weekend the way it looks lol

[@MuscleCarSolutions]

@ 😆😆

[@hybridmusclegarage4590]

Glad you made this video. I just bought another AVS carb. It works perfect except for when I punch it from a stand still.

[@MuscleCarSolutions]

@@hybridmusclegarage4590 easy to sort out. Edelbrock makes it so easy with the tuning chart and calibration kit.

[@edcucchiarella7994]

Great video, thank you!

[@MuscleCarSolutions]

@@edcucchiarella7994 thank you!

[@hybridmusclegarage4590]

Awesome info as always!!

[@MuscleCarSolutions]

@@hybridmusclegarage4590 thanks man!

[@NH1969GOAT]

Excellent video! How do you handle total timing as you advance your initial timing?

[@MuscleCarSolutions]

@@NH1969GOAT you can limit the mechanical advance in the distributor if you find the total timing isn’t liked by the engine. One of these days I’ll do a video on how to limit total advance in the distributor. I’d guess there’s probably a good video or article on that somewhere. It’s a great question!

[@lordsauto]

Hi bud long time subscriber here. What number on that regulator are u using. I just ordered one. Thanks

[@MuscleCarSolutions]

@@lordsauto that’s a long story…but I went back and forth between 4.5 and 5. It was a bit of an emergency. As soon as I get a replacement it’s coming off.

[@kenschreiner6465]

I understand the reasoning on fuel pressure regulator but all though the 60’s I don’t remember ever seeing regulators on a single muscle car from factory

[@MuscleCarSolutions]

@@kenschreiner6465 correct. But they came with a specific carburetor calibrated for that specific application. Universal carburetors are a whole other story. Why cheat yourself out of having one more adjustment point?

[@moparnut6286]

👍🏁🇺🇸

[@MuscleCarSolutions]

@@moparnut6286 thanks man!

[@Bbbbad724]

There are a mix of different things that tune a carb.

[@MuscleCarSolutions]

@@Bbbbad724 I couldn’t agree more. And unfortunately, timing and fuel systems seem to get mostly ignored. But I’ll keep banging that drum and hopefully help a few folks get their carb dialed in a little better!