Slant 6 4 barrel carb

I guess , since I found a 4 brl offenhauser alum intake for dirt cheap at a garage sale, I just sort of went with the 4 brl idea. I found a holley 390 cfm carb for $75 and that's where I sit now. Not a lot invested in the thought yet, but a few others have mentioned they have had success with this set up. So I'll give her a shot. Hopefully, after increasing exhaust size(still unsure whether to go with single or dual exhaust) and headers along with cam replacement, maybe it'll work fine for me...