Nitrous Micro Switch - Bracket Included - Holley 4150 Carburetors - Kit

Additional Information

Some model carburetors made need to tap the mounting bosses with an 8-32 tap for installation..These will not fit Quick Fuel Carbs with mechanical secondary linkage.

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Reference Information

Throttle Switch, Wide-Open, Spring-loaded Lever, Momentary, Single Pole, Plastic, Gray, Each

Allstar Performance wide-open throttle switches are designed to mount to the base of a Holley carburetor and activate when wide-open throttle is achieved. They're available with or without a mounting bracket. The brackets are made from lightweight billet aluminum that's been black anodized for protection. The brackets work with the standard secondary arm, as well as a throttle adjustment-screw secondary arm.