RE: Top Speed!
Change a few things and 40+ is reachable , though top speed is not necessarally the most important thing to consider .
The TT.28 is a decent stock motor with good torque and a wide powerband , it also holds a tune very well and mine has been through 6 gallons and is still running very strong .
It does have its flaws though but is a very tough truck and a bargain for what they are selling for IMO .