HI Dave, I'm over here trying to figure out a turbo size for a 292 chevy 6. I found one in a late sixties 3/4 ton chevy truck with a t-400 behind it. I'm trying to buy it now. If I don't get that one I'm going to build a 250. I think I saw that a 301 turbo setup in Leo Santucci's book. I want to do some headwork/valves, a cam, fuel inject it and build the exhaust header for a turbo.
I'm still in the chassis design stage, and the 500 cad is still in the wings.......john