Originally Posted by Cal_Cobra
Thanks for the clarification of the C3P SC pulley numbers, I was starting to think I wasted $600 on it
I've often wondered if the crank and SC pulleys were both run what kind of gains we'd see

Yes,
I know of one C32 (Eleventeen) that is running the 178 and the C3 pullies together. I will be doing this mod. We will be hitting the track together soon as he lives 5 min from me. I would expect that car to run VERY strong. I am eager to see it! For me, I would imaging with the NW mani's, upgraded exhaust, C3 pulley and an ECU re-tune from LET, I will be mid to high 11's around 117-119mph. Did I mention Meth? Oh yeah, that too. :P LoL, this is my hope. We shall see though.