Spectre Performance 4768 14" Offset Air Cleaner Base with Stud Zinc plated steel to resist corrosion Moves 14 inch assembly 1-1/4 inches from center Fits carburetors and throttle body injection assemblies with a 5-1/8 inch mounting flange Flat base plate, raises assembly 1-1/4 inches higher than our other drop base air cleaners Works with 14 inch air cleaner assemblies