Update: couldn't find pin gauges yet, put it together with new gaskets, new 6.5 power valve just to check. Plugged in PVC and pulled vacuum cap of front port, right below where check ball port to power valve is and gas came out of cap.
The quickest test I use to verify the power valve isn't hitting the boss is to take the gasket off the metering block, and with the power valve installed with the gasket under it (some guys, for some reason, do this without the gasket under them power valve and I don't know why) stick the metering block up on the main body.
If it wiggles at all, the power valve is hitting. Your metering block isn't billet and they are a bit more conforming so the power valve can be hitting and you may not have an external leak.
Thats the quickest way to verify the power valve isn't hitting the main body.