best lipos

[david]

hey guys
i just got a new blackjack 26 today
and i wanted to kno what was the best lipos
to buy for a stock setup trying to run in the 40
to 45 maybe even 50 mph range

[david]

what the expected speed for

3s lipos =
4s lipos =
5s lipos =
6s lipos =

which one of these is the best to go whit