with my manual, i make sure i do a burnout and get my rear tyres sticky.
With the 3.45lsd and sticky tyres i launch at around 4000rpm and its a quick clutch slip. I dont mind a little bit of wheelspin.
With the 3.08 open centre i was takin off around 2500rpm. haha
An auto will shift quicker then the manual so make sure u get the most out of the start. You have alot more rpm to play with then an auto with no stall.