Originally Posted by fast68plymouth
Quote

Proform 11.14 @ 119.7
Holley 10.88 @ 123.7


This is a huge difference imo.
Especially when you factor in the slower carb had a better 60’ time.
The slower carb is going to get some jet added. I'm going to increase pvrc channel size then add mj. The car responded well to idle and transition calibration.

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