I bought the RW crank pulley.
By the time it got here to Canada I might as well have paid someone to lathe me one.
The gain I noticed was in throttle response, mainly quiker reving.
If it unloads accessories it must free up some HP I figure.
Bhuff; people say a lot of things like MSD isn't worth it, and you don't need an 8.8" , eat your veggies, too much red meat is bad, speed kills, you know what I mean.
What is that old saying? Opinions are like aholes, everybodys got one!