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GVW: 12000
yet provides more cranking power
1967-1968 Pontiac FirebirdProduct Description:
Multiple tapped holes allow for mounting adjustability 1/2" to 3-1/2"
these cost effective rocker arms are capable of providing added valve lift while withstanding the rigors of a performance application
Royal Purple Duralec Ultra 10W30 Synthetic Motor Oil - 1 Gallon 20-670-4 GVW: 12000Product Description: Motor Oil Duralec Ultra 10W30 Synthetic 1 gal Jug Royal Purple was founded in 1986, but its roots go back much further. Royal Purple Motor Oil increases horsepower and torque. Royal Purple XPR Extreme Performance and Royal Purple XPR Racing oils are formulated for ultra performance applications such as racing, modified engines and off road use. Professional engine builders and race teams have cited increased horsepower and torque,
