Sqauring just means same jets in front and rear...try this before blocking off power valve..if ya still running rich ya may have to look at block off power valve..
when you lock your timing at whatever full advance you desire. it will remain locked at that position, you will not have to bring the rpm's up to get it to advance..
hope this helps.
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "