Do what the automakers did, add a idle solenoid, hook it to keyed power so when you shut the ignition off the throttle blades close almost completely...

Found this...

http://www.network54.com/Forum/76346/thread/1291263718/Fast+idle+solenoid+on+a+Holley+4150

Last edited by 1_WILD_RT; 03/25/11 04:05 AM.

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