{"id":4169666658377,"title":"Holley Ultra XP 2-Barrel Carburetor 500 CFM 0-4412BKX","handle":"holley-ultra-xp-2-barrel-carburetor-500-cfm-0-4412bkx","description":"\u003cp\u003e\u003cstrong\u003eUltra XP 2-Barrel Carburetor\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e500 CFM\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTumble Polished w\/Black\u003c\/li\u003e\n\u003cli\u003eCFM:500\u003c\/li\u003e\n\u003cli\u003eFuel: Gasoline\u003c\/li\u003e\n\u003cli\u003eNew or Remanufactured: New\u003c\/li\u003e\n\u003cli\u003eNumber of Barrels:2\u003c\/li\u003e\n\u003cli\u003eCarburetor Flange: Holley 2-barrel\u003c\/li\u003e\n\u003cli\u003eChoke: None\u003c\/li\u003e\n\u003cli\u003eFuel Inlet: Single\u003c\/li\u003e\n\u003cli\u003eCarburetor Finish: Tumble polished\u003c\/li\u003e\n\u003cli\u003eFord Kickdown: No\u003c\/li\u003e\n\u003cli\u003eBooster Type: Down-leg\u003c\/li\u003e\n\u003cli\u003eThrottle Linkage Type: Universal\u003c\/li\u003e\n\u003cli\u003eCarburetor Height (in):3.250 in.\u003c\/li\u003e\n\u003cli\u003eNotes: Black anodized billet aluminum metering block and baseplate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eHolley aluminum Ultra XP 2-barrel carburetors feature all-aluminum construction for nearly 50 percent weight savings over the standard zinc version. They use a billet aluminum metering block for improved durability and true gasket sealing, and a billet aluminum base plate with dedicated race-only throttle lever (all unnecessary street attachment points and tags removed). The throttle shaft is capped to prevent the entry of debris and contaminants, while a knurled curb idle screw allows easy idle adjustment without the use of tools; a set screw provides wide-open throttle stop adjustment. The new fuel bowl provides 20 percent more fuel capacity than traditional V-bowls--with a wedge float for fuel control, a built-in drain plug for quick jet changes, clear sight windows on both sides for easy float level adjustments, and -8 AN inlet threads that can be plumbed on either side. The fuel trough is positioned on the floor of the bowl to route fuel directly to the jets and minimize fuel aeration while promoting more consistent metering. Up on top of the Holley aluminum Ultra XP 2-barrel carburetors, we find the choke horn has been removed; the air cleaner flange is now centered over the venturi for improved airflow performance; down leg boosters provide improved fuel signal into the 1 3\/8 in. venture; a contoured head squirter screw streamlines airflow; and the air bleeds have been moved outward to allow a smoother transition of airflow. 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They use a billet aluminum metering block for improved durability and true gasket sealing, and a billet aluminum base plate with dedicated race-only throttle lever (all unnecessary street attachment points and tags removed). The throttle shaft is capped to prevent the entry of debris and contaminants, while a knurled curb idle screw allows easy idle adjustment without the use of tools; a set screw provides wide-open throttle stop adjustment. The new fuel bowl provides 20 percent more fuel capacity than traditional V-bowls--with a wedge float for fuel control, a built-in drain plug for quick jet changes, clear sight windows on both sides for easy float level adjustments, and -8 AN inlet threads that can be plumbed on either side. The fuel trough is positioned on the floor of the bowl to route fuel directly to the jets and minimize fuel aeration while promoting more consistent metering. Up on top of the Holley aluminum Ultra XP 2-barrel carburetors, we find the choke horn has been removed; the air cleaner flange is now centered over the venturi for improved airflow performance; down leg boosters provide improved fuel signal into the 1 3\/8 in. venture; a contoured head squirter screw streamlines airflow; and the air bleeds have been moved outward to allow a smoother transition of airflow. The carburetors are available in your choice of tumble polished finish, with black anodized metering block and base plate; or, hardcore gray anodized, with black anodized metering block and base plate.\u003c\/p\u003e"}

Holley Ultra XP 2-Barrel Carburetor 500 CFM 0-4412BKX

Product Description

Ultra XP 2-Barrel Carburetor
500 CFM

  • Tumble Polished w/Black
  • CFM:500
  • Fuel: Gasoline
  • New or Remanufactured: New
  • Number of Barrels:2
  • Carburetor Flange: Holley 2-barrel
  • Choke: None
  • Fuel Inlet: Single
  • Carburetor Finish: Tumble polished
  • Ford Kickdown: No
  • Booster Type: Down-leg
  • Throttle Linkage Type: Universal
  • Carburetor Height (in):3.250 in.
  • Notes: Black anodized billet aluminum metering block and baseplate.


Holley aluminum Ultra XP 2-barrel carburetors feature all-aluminum construction for nearly 50 percent weight savings over the standard zinc version. They use a billet aluminum metering block for improved durability and true gasket sealing, and a billet aluminum base plate with dedicated race-only throttle lever (all unnecessary street attachment points and tags removed). The throttle shaft is capped to prevent the entry of debris and contaminants, while a knurled curb idle screw allows easy idle adjustment without the use of tools; a set screw provides wide-open throttle stop adjustment. The new fuel bowl provides 20 percent more fuel capacity than traditional V-bowls--with a wedge float for fuel control, a built-in drain plug for quick jet changes, clear sight windows on both sides for easy float level adjustments, and -8 AN inlet threads that can be plumbed on either side. The fuel trough is positioned on the floor of the bowl to route fuel directly to the jets and minimize fuel aeration while promoting more consistent metering. Up on top of the Holley aluminum Ultra XP 2-barrel carburetors, we find the choke horn has been removed; the air cleaner flange is now centered over the venturi for improved airflow performance; down leg boosters provide improved fuel signal into the 1 3/8 in. venture; a contoured head squirter screw streamlines airflow; and the air bleeds have been moved outward to allow a smoother transition of airflow. The carburetors are available in your choice of tumble polished finish, with black anodized metering block and base plate; or, hardcore gray anodized, with black anodized metering block and base plate.

$561.95
Maximum quantity available reached.