caminokid
Sep 26th, 05, 4:21 PM
Can anyone tell me why a holley carb backfires? I can't seem to get mine to stop backfiring when I floor it.
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WestyJ69chevelle Sep 26th, 05, 4:29 PM could be too lean...could be too fat too...check your timing as well.. might be too far advanced. Xtreme70SS396 Sep 26th, 05, 5:35 PM Backfiring is timing related, not carb related. Note that the backfiring on some earlier model Holley's will result in a blown powervalve(s) - you may want to replace them. mac762 Sep 26th, 05, 6:11 PM You may need to advance your timing. later. 69-CHVL Sep 26th, 05, 6:22 PM You may need to advance your timing. ALOT! Chevelle Dude Sep 29th, 05, 8:35 PM Actually, if im not mistaken, A too lean Mixture will cause backfires too Mike Feudo Sep 30th, 05, 3:30 PM If it runs ok otherwise it probably has a problem the the accelerator circuit. blown70 Sep 30th, 05, 5:29 PM If your power-valve is too small then when you get up in the higher RPM's you will build enough vacuum to close the power valve and it will lean out then backfire. I had a 3.5 in my na smallblock and up at 6500 it would backfire so I went to a 5.5 and never had anymore problems. | ||