How To Adjust The Idle Mixture Screws On Holley Carburetors

By: Bill Tichenor12/02/2009 < Back to Blog Home
Tips on adjusting the idle mixture on Holley carburetors, using a simple vacuum gauge. Proper idle mixture adjustments can prevent bogging, hesitation, rough idle, backfire, stalling and hard starting. Additional information can be found on Holley's Blog: