Thank you, that was my thinking also. However, I had the intake off last summer and I inspected the cam lobes and there was zero visible wear on any lobes. I removed 1 lifter to inspect wear on bottom. No wear. I can’t quite recall, but I think I remember it being a solid lifter. Not, sure of that memory though. Shouldn’t all 72 - 360’s have the same lifters or rocker arms ? What’s the side effects of a worn cam, valves not opening far enough, but what side effects does that cause ? Like I said, I looked at cam with intake off last summer. Zero, cam wear or grooves that I could see. Nice and smooth.