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Old 01-21-2020, 08:54 AM   #11
JSeery
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Join Date: Nov 2012
Location: Wichita KS
Posts: 16,132
Default Re: Looking for exhaust port layout drawing

It is fairly easy and quick to hold some poster board type of paper up to the block and just use your finger to press around the bolt holes. Just make sure the paper stays put and doesn't move.
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