Forgot something...

I agree...Smokey also told me the heads were actually down on power. If you look at one of the old Jenkins small block Chevy books, there's a picture of the Grump fiddling with what looks like a 351 Cleveland tunnel ram on a small block. Back then it wasn't easy or practical to fab an intake (sheetmetal). I suspect he was trying to figure out how to adapt the intake to a set of these heads.

Wayne