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Old 03-12-2005, 02:34 PM
HSSS427's Avatar
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Join Date: Jul 2004
Location: Alpharetta, GA
Cobra Make, Engine: ERA #414 427 s/o w. Shelby Aluminum heads, Edelbrock Performer RPM Intake, Mighty Demon 750, Tremec TKO 600
Posts: 714
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Unhappy Fuel coming out of main bowl vent
Have a 427 so with a Holley 4150 750 cfm with the ProForm main body on it. I noticed the engine running rough when crusing at about 3000rpm. Got back to the house and ran it with the hood lifted. When I reved it up, fuel started coming out of the main bowl vent on the primary side (the 1/4" tube that sticks straight up between the plenums). I checked the float level and it's where it's supposed to be - a little fuel sloshes out when I rock the car. Jets on the primary side are #73. Any ideas on what would cause this?

I'm thinking more and more about that Demon carb, cause this one's giving me fits......
Thanks!
Scott
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