Pretend I’m an idiot.

Listing the 318 as HP gross ended... when... 1971? It then went down to a measly 155 HP net. That is reality.
But I don't know about the later roller engines.
yeah, but anytime anyone list what there motor produced on the dyno, or say they want to build a 400 hp small block, or a 250 hp 318, they are talking gross.