I am going to try again and reach 70-80 mph, but with a different setup.
Here is my new setup (as far as electronics and a few chassis mods)
Batts: SMC IB3600, 1.168 volts per cell (takes place of 8 cp-1300 cells)
Esc: LRP Quantum pro (takes place of GM V12)
Radio: JR R-1 with PCM module and reciever
Motor: Team Orion Revolution V2 12x1 HS (takes place of Epic binary 2 10x1)
Chassis mods: Motor moved to rear of drive shaft case (behind rear wheels). It seems to make it accelerate better (since more weight is on the back wheels due to the suspension design), but I don't know about handling yet though. The rear suspension was also moved (pics of new parts and suspension mod: http://www.one18th.com/GetGallery6757.htm)
If you have any suggestions for me that would be helpful.
Thanks and sorry for the trouble earlier (some members might know of this).