Underdrive Pulley?
I don't quite understand why we can get by with less belt speed if GM went to all the trouble to engineer it this way.
I would hate to compromise their engineering without a good understanding of what to expect.
P.S. The search function is FUBAR.
Thanks
Just make sure you know what your getting yourself into when doing this mod.. It requires as much work as putting a cam in the engine and might not be worth it as a stand alone mod.
Are you planning on anything else for the car?













