800cfm works for me... just for some reason was told they were 795cfm. Its a 1986 or so 454, havent contorted myself into the position needed yet to see the block casting numbers for exact year. Its been transplanted into my 1984 3/4 Suburban, currently the engine has headers with 3" exhaust and smog systems bypassed, those are the only mods made that I know of.
If its no big deal I'll put an electric choke carb on this bad boy, don't think it will be too big of a deal to do that.
I say its hot air carb because of the airfilter housing has the butterfly deal in the neck of the fresh air intake with a tube going down to where the exhaust manifold used to be, theres also a vacume line connected to the actual flapper deal... could even be electric choke carb sitting there, I should prolly confirm which carb is on this frankenstein.
I had the carb casting numbers at one point but dont see 'em anymore... will get that as well tomorrow when its daylight again.