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Compression 140-160 1971

posted by  rawits on  Wed Oct 21 07:55 CST 2009
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last visit: Sun Aug 3 12:32 CST 2014
[RELATED]

Update...! From Thursday Oct 21.

On closer inspection...the AFR gauge pegs lean when I step on the gas (part throttle from any cruise condition, typically around 3K) then drops to 15.5 to 16.1 depending on whether you continue to accelerate.

IMHO I think I need to reshape the needle with a "step" reduction somewhere in the first inch.

With new 195 mains...idle is clearly running rich at 12.1 to 12.7 and tailpipe noticeable...






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