Your going to have to really work on babying that thing off the line - sounds like a beast
You will want to slip the clutch off the line, that way you slowly feed more power to the rear as you start rolling. I would prolly use 2500-3000 RPM as a starting point for RPM, and roll into the throttle more as you let off the clutch.
If you are feeling adventerous, climb under the front of the car and unbolt your sway bar endlinks. That will allow more weight transfer from the front to the rear.
- Justin