Reply to "Engine is dieseling badly on shutdown - Seeking advice"

Finally some improvement. I set the idle timing much higher (simulating vacuum advance) and adjusted idle mixture screws to maximize vacuum. The dieseling is almost gone. Here are the settings for the Progression Ignitions distributor:

Thus at idle there is a lot of advance and as soon the throttle is blipped the advance drops to around 16 degrees and gradually increases with RPMs.

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1/9/241:20 PM

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