New ignition, new stumble

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#6 (permalink)

07-30-2020, 04:26 AM

Argess

CC Member

Join Date: Jul 2009

Cobra Make, Engine:

Posts: 416

Not Ranked

When I first started tuning my engine, I had a stumble when accelerating from low rpms. No amount of carb tuning (mostly accelerator pump cams) would change it.

I finally started bumping up idle timing (while keeping the max timing of 38 constant) and the hesitation/stumble finally went away.

Mine wasn't over-complicated to sort out as I don't run vacuum advance.

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