4 Barrel carb oz head

[ruckus68]

what is a good size 4bbl carb to put on my oz head 200 with currently C4 but will switch to T5, 260 cam, headers, 8" with 3.0 gears (may swap them out to 320 -350).
is 650 to much?
how bout 525?

thanks
John

 

[CobraSix]

I think Mustangaroo is running either 500 or 650.

I can tell you with a T5, 260 Cam, 3.20 gears, headers, electronic ignition, enlarged valves, that it feels like my car uses everybit of the 390 CFM that I have right now on the 4V.

Question, are you planning to cut up the manifold for the 4V or just an adaptor? If adaptor, I'd say go with 390, if direct mount, 390 or 500 depending on what you do with the car. If you do more cruising and want mileage, 390. Otherwise 500 judging from mustangaroo's numbers.

Slade

 

[ruckus68]

mustangaroo is using a 2bbl 500 cfm with his supercharger and i am buying his old intake machined for a 4bbl

can you jet down a 650 if it is too much or is it better to start with a lower cfm carb

thanks
john

 

[CobraSix]

I'll leave that for xtaxi or some other carb expert to answer. carbs are not my forte.

Slade