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Holley Performance 0-80803HBM Ultra XP Marine Carburetor

7124960 - 0-80803HBM

4 bbl - 750 cfm - 2 Circuit Metering - Model 4150UXP - Mech. Secondary - Gas - Dual Fuel Inlet - Dbl Accelerator Pump - Hardcore Gray w/Blk Metering Block

0-80803HBM Ultra XP Marine Carburetor Holley Performance

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Holley Performance - Ultra XP Marine Carburetor - Part#: 0-80803HBM Features:

  • Aluminum Construction
  • Saves 4.5 Pounds 38% Weight Savings
  • Has A Set Screw In The Base Plate For Wide Open Throttle Stop
  • Throttle Shafts Rides In Oil Smooth Throttle Actuation
  • Metering Blocks/True Gasket Sealing/Fully Adjustable
  • Contoured Venturi Inlet Balances Airflow For Increased hp
  • Air Bleeds Moved Outward Allow Smoother Transition Of Airflow
  • Metering Blocks Feature Durability True Gasket Sealing
  • Idle Bypass Valve Eliminates Need

View the Full List of Automotive Applications »

Below is an abbreviated list of applications for the Ultra XP Marine Carburetor.


Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR Sprint Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Exhaust, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.

Shipping Information

  • Item Requires Shipping
  • 9.2 lbs.
  • W12.3800” x H9.1300” x L14.2500”

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