yes, HKS makes on for the 240sx
im sure its listed onthe USA HKS site i know it has it on the japan one iirc.
phase2 is probably THE most reliable business you can buy from. definately one of the most at least! also the owner is a drag racer himself so he can give you some help as well im sure!
hes building as13 drag car i believe too, last time i spoke w/ him