I have a 1992 chevy 1500 with a 600 holly carb I'm 200 miles sense the new engin and it died on my at a stop sign and now it won't stay running under 1000 rpm. The carb backfired but started up 10 min

Asked by Dec 06, 2015 at 09:54 PM

Question type: Maintenance & Repair

1 Answer

395

Holly carbs don't like it when the engine backfires. It usually ruins what we called the "power valve" diaphragm. This makes it hard to keep the engine running. I personally dislike Holleys for this and other reasons. I'd put the QuadraJet back on and get some reliability.

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