Can I use these "Lash Caps" on E7 heads? I'm using scorpion 1.6 rockers.I have 14 vavles figured out but I can't really get a good sweep/ witness mark on 2 of them. I'm getting more like a spec/ for in the middle more or less and A buddy of mine from work mentioned these Lash Caps. He said they are for dohc engines but I'm not sure I can use these. I figured I could get a pattern some way. I'm in the 6.250 range I've already tried 6.200 and gone up 6.272, 6.258,6.300 using shims .10,.20,.30,.40, .50,.60 but 6.250 + .10 shim seems to be the closest but not satisfied with a dot.Added a pic of the lash Caps.I see they sell .40 ones