I have an 800 cfm AVS that I picked up for my Barracuda. I built a 416 stroker for it and here are some of the specs:

416 cid
Edelbrock Performer RPM intake
Comp Cam 292H series .501 lift (I&E) 244 duration (I&E) at .050 106 centerline 110 separation
Dougs Headers w/ 2" primaries and 3" collectors
3" exhaust
4 spd
3.55 gears in rear

Do you think 800 cfm is too much for this setup?

1970 Challenger Convertible soon to be T/A convertible

Contrary to the opinions of some, I am not dumber than I look.