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Analyzing Compression Test Results 200 1981

So you're only supposed to remove one plug at a time? I was also wondering about the throttle-wide-open part. I read in the archives that that's the best way, but I don't really know. I suppose theoretically it lets more air into the compression chamber. I'd like to see how others run their compression checks. It seems like everyone has their favorite way. Is there a consensus on this?
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Thanks to everyone for the help, Doug C. 81 242 Brick Off Blocks, stock, M46; 86 240, 133k






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