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has anyone tried 1.6 roller rocker arms, if so did you see any increase in performance on a 2.2?????
1.6 roller rockers
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they are supposed to help alotm but alas they arent available for my truck and i have bigger ideas to save for now.
G
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·I dont know i was wandering the same thing about that and the Underdrive pulleys
Seems like STS advertised them (claims to ad 10 hp)
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