02-18-2012, 05:48 PM
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CC Member
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Join Date: Apr 2004
Location: Scotts Valley,
CA
Cobra Make, Engine: ERA 289 FIA #2108
Posts: 1,882
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Not Ranked
Holley 670 Street Avenger: idles at 2000rpm, backfires...
My Cobra has been sitting for a couple of weeks and I took it out today for a short run. The idle was really high, which I figured was the choke (electric), but after letting it warm up I could not get it to settle by reving it up. Huh! Drove a couple of miles and then stopped, and it backfired out of both side pipes.
That's when I knew something was messed up. Drove it home with the engine idling at 2000 rpm, got home and it backfired again. Checked for vacuumn leaks, sprayed carb cleaner into the four little ports on the main and secondaries. No go. Still idles at 2000 rpm.
A little help for the novice Holley-tuner?
DD
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Dangerous Doug
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