Anyone here ever have their pistons machined?

RustyRatRod said

Let me ask you this....are you 100% sure you are doing it correctly?

oh and 31* of initial timing is way too much, IMO. What type of ignition box do you have? I wonder it it's possible it is getting advanced there?

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Huh? The most that I have ever ran at idle is 25 degrees. That was to check idle vacuum. I didn't drive it at that setting, since that would put the total timing to 39 degrees!
I have the initial set to 17 degrees! the 31 number is where the distributor stops advancing. The 14 degrees is the total amount of centrigual advance that I have in the curve.
I'm using the MP Chrome box. I also have a Rev-N Nator ECU that I tried last year. Along with those, I have several stock and replacement UCUs that I have from parting out many cars.