ok Im not sure how to tell if the block has been zero decked or not. I bought the rebuilt engine the edelbrock intake and carb plus a huge crane energizer 284h12 and stock 75cc heads. The motor had only ran once before I bought it and the powerglide for $400.
so the cam is to big how about the comp cams 268xe.

I have a edelbrock performer 2101 intake as well a edelbrock 1406 650 carb, so do I still need the performer rpm intake? also this motor may get backed by a 700r. do I need to change pistons from the sealed power 2044p pistons (I think they have a 5.4cc dish).