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Old 03-26-2024, 04:16 PM   #11
mattfranklin
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Join Date: Dec 2011
Location: Moraga, CA
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Re: I have a 383 stroker engine in my ElCoolmino, getting run on and backfire …

What the other guys said about timing. A little more timing will bring your idle speed up, so you can back off on the idle speed screws, closing the throttle.


Also try premium.
It resists knock and preignition.

As a last resort you can install an idle speed solenoid. It bumps up the throttle position when the key is on for a stronger idle, and it closes the throttle a bit when the key is off, giving less of a chance to run on or "diesel."
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