Works With Holley List Numbers 1850, 3310, 8007, 9015, 9776, 80457, 80508, 80570, 80670 & 80770. Holley Rebuild Renew Kit Vacuum Secondary Carburetor. Holley Carburetor Rebuild Kit. Works on Holley 4160 Series Vacuum Secondary Carbs 570, 600, 650, 670, 750 & 770 cfm.
