Scat Ratio Rocker Set 1.25:1 Pro-Street: Beetle (1960-1979), T2 Bay (1968-1979), T2 Split Bus (1960-1967)Complete 1. 25 ratio rocker assembly for performance engines Includes forged rockers, billet shafts, swivel ball adjusters Mounting blocks and adjusting shims included for easy installation Increases valve lift for more horsepower without changing duration The SCAT Pro Street 1. 25 Rocker Assembly Set is designed to boost engine performance by increasing valve lift, resulting in more horsepower without altering the camshaft duration. Ideal for