Air Cleaner Base - 14 in Round - 5-1/8 in Carb Flange - Drop Base - Aluminum - Natural - Each Brand Allstar Performance Dimension is the distance from bottom of this air cleaner base to carb neck sealing flange with spacer listed. 1/2 spacer places base 1-3/8 below carb neck. 1 spacer places base 7/8 below carb neck. 1-1/2 spacer places base 3/8 below carb neck. 2 spacer places base 1/8 above carb neck. ALL26092 Truck Freight- NO State Restriction-
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