I run a 3.90 gear and my car is set up for a 10.00 index. 60ft the way its set up is 1.37 and the MPH at the stripe is 134 which gives a decent top end charge. Going from a 4.10 to a 3.90 the ET didn't change much but the 60 went from 1.35 to a 1.37 and the MPH from 132 to 134.
My car is 3750lbs with stock suspension.
__________________
66 GTO Nostalgia Super Stock/Street Legal Car
421 CID, stock block, Wenzler Intake, 2- Carter 750 AFB's, 3.90 Gears, Full Factory Interior, Full Exhaust, Stock Suspension 3750LBS 9.77@136.99
Multiple NSCA/NMCA World Champion
66 GTO 389 3x2, 4 speed, 4.33 gear, Montero Red 33K original Miles
67 GTO 2dr Post, 428, Tri Power, 3.55 Gears
80 Trans Am Black SE Y84 W72 WS6
|