[scottj]

750, 850, 950 does not refer to the progression in size one would think. A 950 has an 850 throttle plate (1-3/4") and a 750 venture (1-3/8"). An 850 is actually a bigger carb as it has a 1-9/16" venture. The 750 has a 1-11/16" throttle plate. I've always run a 750 or a 950 on big small blocks on the street and usually the 750.

IMO this motor begs for a large solid roller...