Looks Like I Picked The Wrong Week To Quit Sniffing Glue / '64 Valiant Troubles

Chuck Valiant said

Thanks guys.
...sometimes when I'm idling at a stoplight it is so quite that I think it had died on me, nope just hit the gas and there she was.
...
I went ahead and got my own compression tester and redid the test, this time with the throttle opened. Every plug read 130... stoked!

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Same with my 64 Valiant. The engine died driving it home after purchase (bad wiring) and while jumping it, I hit the starter a few times when the engine was already running because it was so quiet and smooth I thought it was off. I think the air cleaner they used then, with small inlet air gap, muffles intake sounds.

130 psi sounds great. I think you would get the same reading with the throttle closed, but might have to wait for ~6 strokes to reach the max reading. If it comes up in 2-3 strokes, that is a good sign too. The reading depends on what camshaft is installed. Some racing cams may give <100 psi reading, but still work great at high rpm.