77mm/3.05" Griptec pulley Gates KO80842HD, 13.5 lbs of boost at peak
70mm/2.75" Griptec pulley Gates K080834HD, 16 lbs of boost at peak
I also use Dave's/DSX Flex Fuel kits and have one on my ZL1 as well as The Roto-fab intake, but have yet to intall the 5" tube.
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