This 5-1/8 diameter plastic spacer from Edelbrock gets you the clearance you need between the carburetor and air cleaner base.Made in USA.
System 1 Spin-On Oil Filter Part# 210-006, 6 3/8" tall, 4" diameter, 45 micron
Brembo Radiator Piston Insert - Titanium, 2.5mm Tall, 34mm Diameter, No Springs
Wehrs Machine WM301-1.250 1" Tall Bore Reduction Insert - 1" Diameter
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Mr. Gasket 1486 Air Cleaner - 6-1/2 Inch Diameter, 2 Inch Tall - Chrome