The original Holley 0-4412 has powered thousands of racers to the winners' circle! How do you make it better?. Other notable features include wedged floats, knurled hand adjustable curb idle screw and down leg boosters.
Holley 4500 dominator carburetor spacer Ultra High flow 2" carbon fiber PC USA
HOL- 134-78S Holley 4150 4500 Ultra XP Carburetor Polished Fuel Bowl Glass Sight
Redhorse Carburetor Fuel Inlet 5950-08-2; Holley Dual Feed, Ultra XP, Black
Holley Carburetor 0-80804HBX; Ultra XP 850 cfm No Choke Mech Sec Gray/Black
Holley Carburetor 0-80803HBX; Ultra XP 750cfm Mech Sec, No Choke, Black/Gray
Holley Carburetor 0-76650BK; Ultra Double Pumper 650cfm Mechanical Black/Polish
