Push rod clearance.

Mike,

With the mock up pushrods being that short, the adjusters would be hanging out of the bottom of the rocker pretty far. That would cause excessive pushrod sweep at full lift toward the intake manifold side of the tunnel. Once the correct length pushrods are in place, it probably won't touch at all.

The sweep on the valve tip looks fantastic! Like yellow rose said, that is what good geometry looks like. With only .035" sweep for .670" lift, imagine how far off it is for someone running .500" lift and having .080-.090" sweep. I've seen that many times, and sometimes worse.

Thanks for the plug, and good luck with your dyno session.
Looks like you were right Mike. I heated the cup end of the mock up rod, and pulled out the cup .200. Let it cool down....threw it in there at TDC and it looks like I will have plenty of clearance. Obviously I couldn't turn it over with that rod, but it looks good. Ordered 3/8 , .120 wall rods 7.700. Done.

Won't make the dyno Wednesday, but it's coming soon!