66-72 Air Cleaner Base - 396 / 427 ( Except 3 X 2 ) L88 / LT1
1965-67 All 396 & 427 except 3x2. 1968-69 All with L-88. 1970-72 All with LT-1. Tech tip: If your car is equipped with a non-stock double pumper Holley carburetor, the listed air cleaner bases will not work due to clearance problemswith rear accelerator pump and air cleaner crankcase vent tube.