Here's an idea, a Brushless HPI Baja SS!

[lutach]

Initial investment is high, but it does pay off in the long term. A good motor like the Lehner 30 series or Plettenberg Bolido will make what ever modified gas engine look weak. Keep in mind electric motor is more efficient then a gas motor. Electric motor have instant power, makes more torque and some can spin up to 50000rpm. Run 2 6S packs ranging from 4500mAh to 5000mAh+ in capacity and your BL Baja will be really fast.