The best way to make sure that carburetors stay perfectly sealed to the intake manifold is through the use of ARP's carb studs. They're offered in a variety of heights to accommodate most any combination of carb and spacer, and are available in 8740 chrome moly with a black oxide finish or ARP Stainless. Special ARP Pro Series NASCAR type stud kits have one of the studs drilled to facilitate sealing the carburetor in the engine by race officials. All carb studs include a nut starter nose (except where noted) and kits come with hex nuts and washers.