my engine has a Hahn racecraft 20g turbo, big 550 cc injectors je pistons and eagle rods i need to know what else i can do, if possible list websites that i can visit.  

If your trying to put out good quartermile times, its going to be hard with a non-LSD FWD platform like the 420a, even with a turbokit and 550cc injectors.

Your cars main weak point is that it only powers one tire thanks to its open diff transmission, and when you launch the weight also shifts off that one drive tire allowing for spin.

I recommend a full rebuild of your transmission with LSD, then putting on slicks, anti-torque bar and whatever you can do to get any of that power to the ground.

ITs too bad this isnt an eclipse GSX so we could have a very easy time getting power to the ground.  

thanks man, i do some research on it