Rebuild Renew Kit Vacuum Secondary, Fits: Holley Carburetor Specs: *Carburetor Rebuild Kit *USA Speed Part Number 4160KIT *Fits: Holley 4160 Series Vacuum Secondary Carbs 570, 600, 650, 670, 750 & 770 cfm *Fits: Holley List Numbers 1850, 3310, 8007, 9015, 9776, 80457, 80508, 80570, 80670 & 80770 *Made In The USA !!! Some of the Featured Components included in this kit: *High-flow .110" needle and seats *6.5 Power Valve *30cc accelerator pump diaphragm *Brass accelerator pump check valve *Accelerator pump check valve diaphragm *Non-stick bowl and metering gaskets *Non-stick Open Style Base Gasket *Transfer Tube Seals (O-Ring & Sleeve Style Included) *Choke Gasket *High Performance Bowl Inlet Sealing Crush Washers