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snbush67 snbush67 is online now
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Join Date: Feb 2006
Location: Scottsdale, AZ
Posts: 6,766
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Arrow PMO Circuit Contribution Chart with AFR plot.

I’m working on a chart showing a basic generalization of the circuits and the contribution throughout a slow acceleration without pump jet enrichment. I think that it’s close. The progression circuit is probably a bit too steep in the beginning, probably close.

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78’ SC 911 Targa - 3.2SS, PMO 46, M&K 2/2 1 5/8” HEADERS, 123 DIST, PORTERFIELD R4-S PADS, KR75 CAMS, REBEL RACING BUSHINGS, KONI CLASSICS
Old 08-12-2025, 07:39 PM
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