Butler’s composite gaskets crush to around .042”. to .044” thick.
Blue felpro crush to about .045”, most cheaper head gaskets crush to .045” also.
I assume the cam is still using the comp 9 way timing set using full advance 4th key yet, as reported earlier. Could be just a miscommunication on my end. I will reiterate it though, the 4th key should be 8* advanced, each key changes the advance 2*. Using the extreme 4th key ends up at roughly 105.5* if it started at 113.5*.
Like Cliff said, quench is marginal to bad, if the cam is advanced to far, you”ll wish you never touched the cam timing. If your convinced all is good though, carry on.
There is plenty of valve to piston clearance with the SPC-8 cam and 1.5 rockers. No reason to bother checking that. Should be good unless the install is really messed up.
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