I have a 421 cheetah pv, bought the bike with this motor few months ago. Anyhow after riding it and feeling like it wasn't at its full potential I started reading threads on trinity pv motors and issues with domes and so on. I purchased a billet head from chariot so that I could use common domes, spoke with a builder and he asked for deck height in order to cut domes. So I tore the head off and did a squish test with 0.62" resin core solder just to see where it was and it did nothing to the solder.I've been running 100 sunoco. And also on that same side the dome and piston are pitted. I haven't done a squish test on other side yet but will soon and get some pics. Also couple weeks ago did a compression test with craftsman tool and came up with 150psi on both sides. Need help figuring out what caused this and what I can do to fix it. Can I just buy new pistons (573mo6800) hone and go? Thanks for any input