Direct Replacement Components to turn a street carburetor into a high-performance carb: get that extra performance out of your ride in less than 30 minutes! Add up to 25-50 HP with PROFORMs 100% NEW, high-performance carburetor main body (no re-built components). Easy swap-in, swap-out installation utilizing existing metering blocks, fuel bowls, and baseplate. Involves only 14 screws. Has adjustable screw-in air bleeds, high-performance down-leg boosters. Get maximum air flow with no air horn, choke tower, or choke control. Comes with instructions, all necessary non-stick replacement gaskets, and high-performance jet kit. Technical Note: Main body does not retain vacuum advance port in original metering block. PROFORM is a registered trademark of Specialty Auto Parts USA, Inc. Holley® and Double Pumper® are registered trademarks of Holley Performance Products, Inc. No carburetor products sold under the PROFORM® trademark, including such parts as may fit with or replace a Holley® part number application, are designed, made, or endorsed by Holley Performance Products, Inc. or any other carburetor manufacturer.

Features:
For Use with Holley® 4150 1050 CFM Gas Carb
  • Requires 1-3/4 Throttle Body
  • No Air Horn
  • Adjustable Air Bleeds and High-Performance Down-Leg Boosters
  • Natural Aluminum
  • Comes with Gaskets and Jet Kit
  • PROFORM Parts Brand Product
  • Sold Individually
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