can anyone on pm tell me the lobe size on the tb s-35 cam? is there a way to tell if the upgraded needle bearing cases were used? I bought a engine from a pm vender that was suposed to have these items but both case halves are well used. on the yx 160 that I installed the upgrade case on the two dont look the same. different shade of gray. I also need to know the difference from the s-20 cam and the s-35 cam. does anyone have the time to measure the cam with a caliper?