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kleen56 09-15-2008 04:51 PM

Holley carb experts needed
I just installed a Holley 650DP on my engine. I checked the float levels on the carb and noticed the primary was fine but the secondary level was high (fuel coming out of the plug hole). The carb has been running on the rich side and I've already changed the jetting. The carb runs great through all ranges but the plugs are still running on the black soot side. Would the higher float level cause a rich mixture? Just curious?

406 bug 09-15-2008 05:19 PM

how bout the plugs- maybe too cold for the new 650.

1BAD80 09-15-2008 06:53 PM

Check the float level again.
Look at adjust floats section below, plus there are many other sites for repairing and tuning in any carb.

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