Racing Valve Spring Kits. In-0.440 Valve Lift OK 40# Seat Pressure / 130# at. 375″ lift Ex-0.440″ Valve Lift OK 70# Seat Pressure / […]
Racing Valve Spring Kits. In-0.440 Valve Lift OK 40# Seat Pressure / 130# at. 375″ lift Ex-0.440″ Valve Lift OK 70# Seat Pressure / […]
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