1.6 Intake Rockers
The 1.6 ratio rockers on the intake side will add flow area under the curve and horsepower, how much depends on your heads, valve job, etc. Just make sure the springs can handle the extra lift and I would break the cam in with the 1.5 rockers, and add the 1.6 ratio after the break in just to be safe. I would say the rockers would be worth 10-15 Hp.
Paul
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