HOLLEY CARBURETTOR 650CFM ULTRA XP BLACK 80802BKX

Carburetor, Ultra XP, Race, 650 CFM, 4-Barrel, Tumble Polished, Black Anodized Metering Blocks Notes: Billet aluminum black anodized metering blocks. -8AN O-ringed inlet threads. Come standard with -8AN o-ring to -6AN male adapter and -8AN plug. Can be plumbed from either side. Special Attention: Holley Ultra XP race carburetors are for race applications only and are not designed or suggested for street use. Ultra XP carburetors do not provide attachment points for street transmissions, vacuum outlets or stock throttle linkage and cables.

Holley Aluminum Ultra XP Carburetors

Holley's Ultra XP carburetors are up to 38 percent lighter than their traditional carbs, offer 20 percent greater fuel capacity, and include a host of other features. One of the main perks is an integrated idle bypass valve that allows for idle adjustments while maintaining the proper throttle-plate-to-transfer-slot relationship. You'll also get all-aluminum construction, fully tunable billet metering blocks, billet base plate, adjustable secondary linkage, and knurled (hand-adjustable) curb idle screws. Enjoy the ultimate in square-bore race carbs; order the Ultra XP carburetor with options best suited for your race application!
Some of the many other features include:
Your choice of several finishes and CFM ratings (from 600 to 950)
Contoured Venturi inlet offers balanced airflow for increased hp
Dual accelerator pumps provide the perfect amount of fuel, from idle to full-throttle
Clear sight windows on both sides of bowls for safe and easy fuel level adjustments
-8 AN (O-ringed) inlet threads offer a large variety of plumbing options from either side
Mechanical secondaries for perfect off-the-line launches
100-percent wet-flow tested by Holley technicians