I'll say it again. We need a modern GMC hop up book. Bill fisher's writings were done before there was a Small Block Chevy V8. A lot has changed. Ron Goldman used Hudson rods and Custom pistons ( I think ) and saved 1 1/4 pounds per cylinder. Some have used MOPAR rear main seals. Some use small block valves and springs. The bottom end is pretty strong. The stamped rockers are plenty good for street and some racing. Patricks has pistons for stock rods. There is a ;to on this site if you can find it.
