i a have the 4.08s with the built GTM transmion.
when i had the stock 7 AT with the N/A mods on it the car car just runs increadably better than it does with the 3.3 gears.
It also shifts a lot faster in MM mode.
fuel mailage takes a big hit especail if you put your foot into.
Just wait till you do a 2000 rpm launch with the car and see what the difference is and if you shift at redline it really shifts fast,
i have the vid of the tack and spedo on the drag strip, i can email to a member if they want to edit and post it. Im not good a doing those things
thanks
Z
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 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.
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