compression test

I've heard them. Exhaust starts making a pinging sound, only heard at idle. Diagnosed one years ago, warned my buddy, they laughed, two weeks latter she sucked one.
But that was on a two valve Harley
 
It is a low compression engine after all. To check for ring sealing quality you can squirt some engine oil into each cylinder and crank it for a while then check again - if the pressures come up significantly then you have ring sealing issues. Honestly 185 PSI is good for a stock engine at your altitude. Just make sure you are at WOT with secondaries fully open when cranking it.

When cranking I added some WD-40 and it shot up to 210 pretty quick....
 
When cranking I added some WD-40 and it shot up to 210 pretty quick....

It would seem your rings are a bit tired - how many miles has the engine done. You are going to freshen it up in any case aren't you. So it doesn't really matter when you get it apart check things like ring end gap and worn ring grooves and check the condition of the cylinder bores.
 
Im done with the compression testing. Im going to start tearing into the motor. It is what it is....
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Hows the rebuild going?
 
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