Yeah and if this were a big block that would be like taking off your 906s to put on some 516's. The 302 head flows less than a regular open 318 head without a considerable amount of work.
If compression were everything we would all be driving diesels.
The 302 doesnt flow the peak till a lot higher lift...because it's like a gopher trying to stick its head out of a hole.
I'm not into plugging my yr, but I flow it in a video and then do a better valve job and relieve the chamber around the short turn.
It's a big difference.