the 70mm TB has a slower velocity than the 65mm TB does i believe, which means you're getting less air into the chambers
use a 70mm if you're using a blower or turbos
*i know i have a 70mm on mine, but the kid that had it b4 me put it on, and i don't have the money to do a 65mm*
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SHaFTed
91GT, 2 chamber flows, dumps, 70MM BBK TB, K&N conical, Robert Shaw tstat, Hurst short throw, T5, 17" Lexani Roma wheels, 235/40/R17 on front, 255/45/R17 on back, mach1 hood, LX tail lights, bright red!
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