<VV> Corvair compression readings

[Clark Hartzel]

I have seen readings in the 150/155 pounds range on a 110/140 HP engine.
But atmospheric pressure is 14.7 PSI x 9.25 compression ratio = 136
pounds.
I think we all have inaccurate gauges!  I can't see any stock Corvair
engine having more than 136 pounds compression and that assumes you have
no leaks thru the valves or ring gaps and both valves are closed at the
start of the compression stroke.  Race engines are a different story
with higher compression ratios.
Clark Hartzel