Holley 4160 Problem. Please Help
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Tuned
Joined: Jul 2014
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From: Texas
Holley 4160 Problem. Please Help
After struggling to get home today with my 351w I pulled the carb off to install a rebuilt 4160 holley vac secondary. It has a 31 squirter and 68 jets. I got it all installed and went to fire it up. The carb backfired and shot a huge ball of flames out so I advanced the timing. Now that I can safely get it started it immediately takes off reving up the rpms. I have backed the curb Idle speed screw all the way out and it still does it? Any ideas of what could be going on?
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