i already installed the 8 lb upgrade pulley that jackson racing offers, my question is this. are underdrive pullies smaller or larger in diameter, im looking to get a little more out of my supercharger any way i can. theoretically, if an underdrive crank pulley is larger, i should get a little more boost out of my sc, right???
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94 Civic EX
JRSC w/ 8 lb pulley
JR boost timing controller
MSD pro comp ignition
short ram intake
Ractive 4-2-1 header
Magnaflow cat back
Ractive tower bars
Ractive coilovers
GSR rear disc swap
full polye