Carb and intake suggestion

[xp29f8b]

I have a 318 thats been balanced and blue printed with 340 heads, high volume oil pump and mild performance cam. It only has a 2 bbl carb and I want to put a 4 bbl on it. Does anyone have any suggestions as to the type and size I should go with? It's going to be a daily driver so I need a little econimy in it, but I want a little more umph in it also (something that will get up and go when I want it to). Thanks

[dodge freak]

You did not say anything about your exhaust but I guessing its a duel but does it have headers of those 340 hp manifolds or I hope not 318 stock manifolds? Anyways this is what I would get for it for what you are looking for-edelbrock carb. a 750 if it has headers and a 600 if it has 318 manifolds. I think hooley makes more power but for gas mileage go with edelbrock. For the intake- I am using right now offenhauser 360 equa-flow high rise, it is a single plane but has great low speed power, in fact my idle smooth out a little from the edelbrock performer and it had a little more power. Offenhauser makes racing manifolds but this one is for the street. Others might say differenet but this is what I would use.

[71440charger]

there is a caculator for that some were but you need nothing bigger then a 600 or 650that is my opinion though

[firefighter3931]

Check E-bay for a used Edelbrock LD340. A holley 600 cfm vac secondary carb would be fine for that combo, inmo.

Ron

[mikepmcs]

Holley, holley, holley.  or demon is pretty good too.

[dodge freak]

Those Ld340's are great too but you have to get used. I use holley and nothing else but he said gas mileage , doesn't  edellbrock get better mileage? Look I thought gas mileage was a joke and did not care but now thats its $3.00 going to $4.00 maybe it does matter, but I still driving like MR. Lead Foot.