These new gaskets fit Holley 2 barrel carbs for 1967/1969 Corvette's 400/435 HP with vacuum secondary. List 3659, 3660 , 3888 , 4055 , 4055-1 , 4056 , 4056-1 . THIS KIT WILL REBUILD THREE CARBS. KIT WILL ONLY FIT CARBS WITH EXTERNALLY ADJUSTABLE FLOATS.
