heating up a little more

Busted lol. thanks for reading the whole post.
I occasionally put typos in on purpose to see who reads my stuff, but that was for sure an accident. Yes 178 is correct.
She has run at up to 188psi with a smaller cam, same results. And
she has run the 292/108 cam at 11.3Scr, also a tic under 190 psi. But that combo ran hot. Scary for me hot. And that is when I went down the same road that you are now working.
I traced my overheat to having fitted the ring gaps too tight. I opened them up from a ring-factor of .0065 to .0080 and honed a half a thou out of the cylinders and that solved it. No other changes.
BTW
the temp is so reliable, I am down to a 7 psi cap, and the top hose is a 1973,lol.