depending on the power you make and tire you use, but for up to 500hp id use b16 and anything over use gsr I went 155 in my car with both trannys b16 trans was 10,200 and gsr trans was 9600 4th gear
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9.81@ 155 - turbo street B18 retired SOLD
9.91@ 144 - turbo street 10.94@ 137 225 50 bfg stock block
9.10@169 - turbo street 24.5 mt
9.38@ 144 all motor
8.76@ 176 outlaw street
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