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Generally speaking, aftermarket rockers give gains in the 20 to 30 horsepower range on L67/L32 engines, while a properly selected cam will give gains in the 20 to 50 horsepower range.
Cams can provide more horsepower per dollar spent, but are MUCH more labor intensive to install. In addition, some of the more radical cams can trip S.E.S. lights, but rockers have no such side effects.
So, it all boils down to how much you want to spend, how skilled you are at parts installation and how much sacrifice you want to make.
Scott
Cams can provide more horsepower per dollar spent, but are MUCH more labor intensive to install. In addition, some of the more radical cams can trip S.E.S. lights, but rockers have no such side effects.
So, it all boils down to how much you want to spend, how skilled you are at parts installation and how much sacrifice you want to make.
Scott