New engine issues

All I know by inspecting my engine after it was done that when the pistons come to the top of the cylinder the pistion position is flush with the gasket surface of the block! I'm using a set of felpro permatex head gaskets. The pistion according to the machine shop guy he had to bore the block 30 over. I did not see any valve grooves on top of the pistons. He used the rods that where originally in the block as well as the crank ! I dont know if they where swapped by a former engine build? The 318 1985 model came out of a plymouth fury cop car. The cam is an Erson brand and all I did is type the specs off of the paper that came with the cam. The heads are stock heads from mid to late 70's or early 80's?