When you put longer valves in the head, the tip gets closer to the rocker fulcrum because of the valve angle.
For minimizing the contact patch movement the pattern will be to the outside.
If you do the math and draw it out, that is the best case for side wear on the valve and nets you the most lift from the cam/rocker setup. You want to be at 90 degrees at half your valve lift.
Where the tip rides on the valve is not as important as getting the side forces minimized..........IMHO.
Now if it is falling off the edge, then you have a problem...but in most cases, it is like you have observed.....just a little offset to the exhaust side.
I would check everything else again and then run it.
Must use hyd lifter locked up to measure.
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65 GTO, 3800#, 474, KRE Dport 330 cfm, 11:1 on pump gas, XE 242 248 solid roller, T56 trans, 3.90 gear, 11.26 @ 124 mph
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