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Don't spend hours figuring out which pieces and parts you need to get what you want from your engine
Ideal for high-performance street and race setups
They're available in several sizes to fit your valve covers
Speedmaster Twin-Carb combine two four-barrel carburetors to achieve the best balance of drivability
Includes special adapter bushings to fit 1987-95 engines
7/16" Polylock Rocker Arm Nut Set (Suits: BBC 454 Stud Girdle) Don't spend hours figuring outSpeedmaster rocker arm adjusting nuts are high quality polylocks designed for full roller rocker arms. Made from heat treated, premium grade 4140 chromoly steel, these adjusters provide 190,000 psi tensile strength for the utmost in reliability. Precision CNC machined threads to ensure optimum seat pressure, flush machined set screws for proper contact on the studs, and, best of all, they don't require any special tools for installation. They're
