Dont get a crank pulley esspecialy an Ebay crank pulley. They are no good for your car. Many will argue but the truth is that over time it will put unessasayr wear on the internals do to the aftermarket pulley not being harmonically ballanced like the stocker. Pick up the couple hp in other places and leave the pulley alone.
Race cars use lightened crank pulleys. But thoses engines get overhauled after a couple races.
Save your money vs. buying any of that stuff and boost that thing
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