To Run that 600 CFM, Cam swap 264-268 Duration, Head Porting/ Milling 9-9:5 CR, Headers 3.23-3.55 gears. On a stock slant six Two Barrel Carter BBD is the ticket, I have found that a four barrel on a stock slant will run slower than a two barrel. Once you your increase Compression the four barrel really shines through. Good luck!
