Sweet looking car. Try to barely stall the convertor up so you don't have so much boost when you release the brake, then ease into the throttle after you get moving pretty well since you obviously have traction issues. I have gotten 1.9 second 60 foot times using plain street radials (Cooper Cobra Radial GTS 235/60/15 size) - on a well prepared track. Nitto or BFG Drag Radials might suit your style (or track) a bit better but I highly recommend the Cooper tires mentioned above for everyday driving (if you are careful) with a 400 horse engine.

by the way they are not 19's they are 17'