Holley Ultra XP 4150 Hard Black Aluminum 650CFM Carburetor

This Holley Ultra XP 4150 Carburetor (0-80802HBX) features mechanical secondaries that boost your vehicle from a stand-still to the front of the line! It is designed for use on high-horsepower engines, running at 650CFM and with a 4-corner idle for excellent control of your ride. It is also made in the USA from lightweight aluminum.

Features and Benefits:
- Ultra XP 4150 carburetor running at 650CFM for high-horsepower engines
- Lightweight aluminum construction saves 38% of weight or 4-1/2 lbs
- Hard black finish with black anodized billet metering blocks and base plate
- Baffled fuel bowls prevent sloshing while adding 20% fuel capacity
- Contoured venturi inlet increases horsepower by balancing airflow
- Outward air bleeds smoothen airflow transition from top of carb to venturi
- Integrated idle bypass valve eliminates throttle plate holes
- Dual 30cc accelerator pumps
- Clear sight windows for easy fuel level checking
- Built-in drain plug offers quick access to bowl
- Variable use 8AN O-ringed inlet threads
- 4-corner idle allows for precise control
- Mechanical secondaries make for perfect launches from zero
- Elongated dual pattern mounting holes
- Knurled primary/secondary curb idle screws are adjustable without tools
- Capped primary throttle shaft keeps debris out
- Stainless secondary link, adjustable for 1:1 or progressive secondary throttle actuation
- Machined accessory hole for addition of primary throttle stop
- Includes notched float and jet extensions
- Wet-flow tested before shipping
- Made in the USA

This carburetor weighs 38% less than your stock carburetor and features a hard black finish for a mean look under the hood. It has a built-in drain plug which offers quick access to the slosh-free, baffled fuel bowl. This fuel bowl has 20% greater capacity than your original and clear sight windows so you can check the fuel level easily. The carb's venturi inlet is contoured, balancing airflow and increasing horsepower. It also features the option of adding a primary throttle stop using a factory-machined accessory hole. This carburetor is wet-flow tested to ensure flawless carburetion!