Holley 4150 & 4160 Needle & Seat There is always confusion surrounding the needle & seat on a Holley 2300, or one of the 4 barrels. Here...
Holley 4150 & 4160 Pump Diaphragm Fuel Bowl Pump Diaphragm (proper installation) Before replacing the pump diaphragm cover, check for warpage by laying the cover on...