These Billet idle speed adjustment knobs are a great way to ease making tuning adjustments to your idle speed.

Made right here in my shop from 6061 billet aluminum. Fit all popular carburetors that use a 10/32 thread screw.

All Holley, Demon, QFT and other Holley similar designs... Also works with Edelbrock/ Carter and Rochester quad.. 

Holley and Autolite carbs with Ford AT kickdown lever may interfere.

Remove your screw , slip the tension spring from the old screw onto the stud and replace..

No more screw driver!!!!! Also a great way to add high tech flair...

Custom thread sizes are available.. custom length and threads also available. Contact us with your needs.

Please specify 4150/4160 or Dominator in the message to seller box before checkout.

Thanks for looking.

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