24lb injectors will have a blue top,
http://search.ebay.com/24lb-injector...fkrZ1QQfromZR8 . sorry about the link, you can just copy and paste it if you get to this today. I would assume that the car has a decent rear end gear ratio and some moderate suspension mods, if it was a show car.
Depending on how many lbs of boost you are running on the blower, AFR 185's with the Holley intake should put you close to 500rwhp, if not higher with a good tune. In my opinion, this sort of horsepower should not be left to deal its damage to the stock rear end. You will need a few traction devices (panhard bar, torque arm/tri-link, lower control arms, etc.).