Holley 0-80903RD Red 1050 CFM Gen 3 Ultra Dominator 4500 Series Carburetor Features:

• Made from all aluminum saving 3.8 lbs from original models
• Polished finish with red anodized billet aluminum metering block and booster insert
• Made for use on drag race, pro street, or any higher horsepower applications
• Calibrated for newer fuels and larger race engines of today's technology
• Completely machined from venturii throat to throttle bore for predictable & consistent performance
• Integrated idle bypass valve allows for adjustment of idle while maintaining correct throttle plate to transfer slot relationship
• 12-hole billet booster inserts for best atomization and cleanest throttle response
• Metering blocks feature greatly improved durability,  true gasket sealing and are fully adjustable
• Twin 50cc accelerator pumps yield the right amount of fuel from idle to full throttle
• Fuel bowls bring 20% more fuel volume while keeping slosh under control with internal baffling
• Clear sight windows on each side of fuel bowls for quick and safe fuel level adjustments
• Built-in drain plug in front center of the bowl allows quick and easy access to empty contents of the bowl
• -8AN (o-ringed) inlet threads give a large variety of plumbing choices and can be plumbed from either side
• Factory-ready TPS mounting points to be used with data acquisition systems (Use Holley TPS 534-214)
• Knurled (hand adjustable) primary and secondary curb idle screws grant for quick and easy idle adjustment without the use of tools
• Contoured hex head squirter screws give way to a streamlined airflow
• Fully adjustable stainless steel external linkage can be changed for 1:1 progressive, or soft progressive throttle activation. No linkage parts are under the carburetor
• 100% wet-flow tested by Holley and ready to run!

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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