mod is a success and other ?'s

so i did the throttle body coolant bypass a few days ago. i read up on it and how it worked, i saw it didnt cost more than about 5-10 dollars, didnt see no bad side effects from it, so i gave it a shot. it was more of a pain in the a** than what i thought b/c the hoses are a little difficult to get to, even with the intake tube off. anyways, now when the truck is warm, you can put ur hand on top of the intake manifold and not get burnt lol. but about my ?'s does anyone know where i can get some lightweight pulleys for a 98 2.7? i have the header setting here waiting to be installed, so i figured while i had that tore apart i fig id add more hp with some lighter pulleys for less rotating mass, any suggestions?