Flows 1250 cfm...this is a 4150 accufab
Even at 100% VE I wouldn't need that much CFM


LT1 with ported 374 GM castings......flowing good, but not finished yet.
No camshaft selected as of yet

comp ratio of 12.5:1

Vic intake.

Any input on this would be a great help.......

some other info DFI,4500 converter, 4.57 gears, 28" tires

Need to keep the revs under 8K......the lower the better, I need this thing to last. It will be my new bracket car

EDIT: found this cheaper cast one...only flows 1000cfm, would this one work better?

 

someone give me an opinion...am I asking a dumb question here?
I am fairly new to EFI/tuning
and overcarbing would kill a great combo...

 

I don't think it will matter. The problems with having too big of a carb are not factors with fuel injection. I'm not 100% certain though.

 

Doesn't matter with fuel injection, you can go as big as you want. With it being a 4bbl you will actually get better throttle response, driveability and tuneability.

What motor, car, etc.? 4th gen with a SBC or LT1? You running the EFI manifold or going to convert a carb manifold?

 

I would run it.

I'm going to use one of the 3bbl ones, wih the progressive linkage. SHould make for better tip in and the flow required when spinning and spraying

 

I would pick a cam first and call the company up and talk to their tech line,and if they dont have one find another place that makes the same thing and talk to theirs. They will be the best help on getting you the right T/B for you app.

 

EFI can almost never be over throttle bodied, the more CFM the better, because you have less vacuum in the plenum at WOT.

Bret

 

o.k. I got the bigger one.