So that step up is the faster lift? Does it wear down the rocker pads sooner?

It is hard on everything.

I saw a lot of cam profiles in tech articles and photos but that one is the wildest and is nearly a 90 degree angle. It is from a Japanese rebuilding site. I'm not sure if it was for road racing or drag racing... I'll guess drag.

Edited November 5, 201311 yr by Blue

I wonder if they built a roller rocker arm to go with it.

Looks like quite a shim under the cam tower.....What head is that?

Here is the page with the cam: …ãŽ©“®ŽÔH‹ÆFmizukami-auto@ƒp[ƒc”Ì”„E”ƒŽæ@`S30ZAKGC10AAE86‚Ȃǂ̃IƒŠƒWƒiƒ‹ƒp[ƒcA‘¼

Here is another with big shim: L28‰ü@3.1‚k@‚r‚o‚kƒGƒ“ƒWƒ“”Ì”„@ƒeƒB[ƒoƒŒ[

Looks just like Eiji's custom pistons and rods.....wow.....don't think you'd be running pump gas with those chambers!

Edited November 5, 201311 yr by Diseazd