what are the various sizes for the s/c crank pulleys by the various aftermarket tuners? I have the original Renntech pulley, but was thinking of something a bit bigger. What is the difference in boost? ASP seems to have the best price but i dunno whats the concensus on theirs. I guess iw ould also have to retune. Any input would be appreciated.

 

Call VRP is my vote. http://www.vrptuning.com