carb dilemma

[squirrel]

first try richening the idle mixture screws a little. What is the list number on the carb? I have the book that should show what came in it originally for jets. Usually stock works on most applications...and also, the main jets don't do much under light throttle use, that is mostly the idle circuit.

[Scott Liggett]

where is the lever hitting on the front accelerator pump? I think the manual says you need a feeler gauge so its not touching at idle, I cant remember .017 or .025 to the front pump. I was always told its gotta touch to lose that stumble. Isnt it just the front circuit that controls the low rpm's? sounds like your secondary side is fine.

It's supposed to be .015 at WOT. You don't want to bottom out before WOT.

[JOES66FURY]

I'll get you the list info in a bit.

[Huskinhano]

It would be interesting to stick a strand of fine wire in the primary air bleeds.

[JOES66FURY]

Its g2g now, I blew them out, some nasty white shit came out....no issues now

[Huskinhano]

Sticking a piece of wire in them is a quicky way of richening up the fuel mixture. One thing I don't like about generic Holleys is the booster. The use either a straight or down leg booster which is fine for high rpm power but down low where you do most of your driving, they just don't atomize the fuel mixture like a annular booster does. The Ford 4100 which is loved by Ford guys because it has them. The Summit and Edelbrocks use them too. My old 85 5.0 Mustang had a Motorcraft 4180 4V that also used them. Those carbs that use the annualar boosters just drive so nice IMO.

[SpiderGearsMan]

3310 list

[Scott Liggett]

Its g2g now, I blew them out, some nasty white shit came out....no issues now

Any time I have any issues with my Holley carbs, the first thing I do is blow out the low speed air bleeds.

[JOES66FURY]

It would be interesting to stick a strand of fine wire in the primary air bleeds.

Ah, I'm smelling what you're stepping in....I've read about that before...did'nt put 2 and 2 together.

[Huskinhano]

Basically the air bleed is a air circuit that is in parallel with the fuel circuit. For any given set up, reducing the air bleed is like installing a bigger main jet and visa versa. Installing a carb setup fora smaller engine on a bigger engine would cause the carb to run rich. To lean it out, you could open the air bleeds as one way to lean it out.

[SpiderGearsMan]

Stupid E10

[JOES66FURY]

Stupid E10

agreed...they cycle between 10 and 15 I think here....shitty gas.

[Scott Liggett]

Maybe a hotter plug would help you.

[JOES66FURY]

I'm wondering about plug gap, IIRC the gap was 35 but I've read about some guys who run 45...right now it has Autolite 85s.

[Scott Liggett]

Keep it at .035. Autolite 86's are hotter.