Well I know that the 75mm has problems with 24# injectors it make sthe car run real rich at low end. Pro-M was unable to get the fuel curve correct for the 24#'s. I just got rid of my 75mm Pro-M although I never had problems with it for a 76mm C&L. Darrin Hendricks, Pure Street 93 Cobra picked up 8 RWHP just by swapping his 77mm Pro-M to the 76mm C&L.
Rick
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