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  1. FAST IDLE! 1966 Mustang coupe with Holley Street Avenger

    Classic Tech
    I recently bought an "A" code 66 coupe with a recently installed Holley Street Avenger 570(elec choke). The car has no tach so I can't say how fast it's idling but it does seem too fast. I'm no mechanic, but here's what I've tried and noticed, any help would be greatly appreciated. TRIED...