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  1. 70bigblockdodge

    Am I missing something

    Problem on my Challenger. I have been fiddling with the tune on this car for a while. Low compression 400 with cut down 516 casting heads @73cc, compression calculates out to 8.46:1 With a 284/484 Mopar cam Wiend aluminum intake and headers I have a lean spot in the RPM range idle to about...
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