Best Carb for Stock 350
 

I'm thinking about putting a new carb on my project boat not sure what size carb would be best.It has a Holly on it now but don't know the size of it.The motor is a stock 350.

600 edelbrock is what I would use, they work well(elec choke version) and are easy to tune if needed

Ayuh,...... Ditto ezstriper,... I Love the Carter AFB carbs,....

Easy to tune, 'n very reliable,... a carbon copy of the Merc/ Weber carbs Merc uses,....
The 600/ 650 cfm for a SBC, 'n the 750 cfm for a BBC,....

gm used a 750 cfm q jt on a million small blocks.i would buy a new quick fuel 750 if buying new.they are very easy to tune and fairly priced.what carb&intake do you currently have?

750 qjet

From my own personal experience, I would never buy anything Quick Fuel again. Not saying no one else should or shouldn't.

I'm not sure what intake is on there now but it's a Holly on there just not sure of the size.

what makes you feel that way?did you have a problem with one of their carbs?

Yes, they were nice to deal with, they tried to fix the problem, but couldn't. The carb was dynoed on 4 different motors, single and dual plane manifolds, couldn't get it closer than 1.5 A/F difference between sides.

on the front of the air horne their is a list number,tell me what that number is and i can tell you what size holley you have.

Edelbrock Marine , I'm and Old School Holley guy , But the Edelbrocks are by far the best for a bone stock pleasure boat app. We've installed probably 40ish
on everything from Ski Nautiques to 30' Scarabs , and haven't had one complaint or issue in 5 years.

Mike I got the list number it's 80309 the year stamped on it was 1980

Any help to let me know what size carb l have would be helpful. Thanks

You have a 715 cfm carburetor

Thanks so do you think if I went with a 750 do you think it will help me or hurt me?

the gain from 715 to 750 cfm carb would depend on the carb itself,not all 750s are created equally.imo the gain from a good 750 will probibally not be worth the cost for a stock 350.

Best bang for buck is rebuild the holley you already have.

I don't think you will notice much difference on a stock 350.

Not to open a can of worms, but mathematically, on it's best day, a stock 350 only moves 506 cfm of air at 5000 rpm, assuming 100% volumetric efficiency - which will really never happen.

If it was me, I would keep what you have, rebuild it and be happy; unless there is some major performance issue with it..

I think that is what l"m going to do thanks for the help.

Do you think a 625 would be to small for a 350?