APD Black Widow Carburetor Spacers are custom CNC machined, 1 piece billet aluminum construction, and hard anodized.
Typical dyno results show 10-12 HP gain on most engines.
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APD Billet Enforcer 4150 flange 750, 950, and 1250 CFM alcohol carburetors.
In Stock! Can ship orders placed by 1:00 PM EST the same day!
The APD’s Billet Enforcer gas carburetor is the gold standard for the vast majority of big block sportsman applications.