hey guys, my dad just bought me this kit for my birthday, but I already have an SLP underdrive pulley, the kit comes with the underdrive pulley, all the bolts, the shorter accesory belt, and red-line synthetic power steering fluid. the kit is supposed to add about 10-15 h.p I'm asking the same price as g2 129.00 so let me know!

gsdz28

 

what engine is this for?? or do they work on all?(LT1/LS1)

Kyle