How fast can you go with that combo (top speed)

 

http://www.f-body.org/gears/

 

wont kill your top speed too much id say 140.

 

There's a video floating around on here where someone did a top end run with a A4/3.73 combo. It pegged the speed (155) in OD at about 5500rpm, from what i could see (night time vid).

 

lol, according to the chart i can go 264. and people with ferrari's think they're so friggin special.

 

Either you didn't enter the info correctly or you have a NASCAR engine....
The only way that calculator shows that with an A4/3.73s/stock tires in OD is at 9000rpm.

[edit]- just saw that you have a M6, so nevermind

 

I've deffinately burried my 150mph speedo with 3.73's and my 4L60E, with a CAI, cutout, and a yank 2800 stall converter.