Need help with Insane 340 setup.

Looking at the pics I would recommend a good valve job... The carbon accross that seat tells me the one it had was terrible. The bowls are done nicely, but not very large. I like smaller bowls, but you might want to get a measurement of the narrowest area, where the pushrod pinch is. Because that may be a little too large. That's an easy fix to change the bowls a little if needed. I run 2.05 valves (but not extra long...) when the 2.02 seats are damaged. It's no big deal really. I replied to your PM. Given the 62cc (small) chambers you have, I would say at this point, if you want to run those heads you need to run a dished piston or a very thick (Cometic custom piece) head gasket.