The cam that was in it originally went bad when the zinc was removed from engine oil which I was unaware of(SM vs. SJ oil). Then I put in another and some of the lifters failed to rotate at break-in. I pulled that one out and put in another (a brand new EGGE and still different lifters failed to rotate, different from the previous cam. I took it back to EGGE and they said it appeared it was produced with insufficient taper. So I asked them to regrind it with 0.002" taper, but asked for all lobes to be ground "taper right" (what I had "heard around"). I've got the cam back today and they did a great job. Only problem is I am looking in my lifter bores at the previous cam down in there and it looks like the lobe offsets are staggered, alternating. If that's the case, then I just had them grind the cam wrong!!! If the lobe offsets are alternating I think I need a mixed taper grind. I'm close to emotional break down on this one!
