Decided to keep my J and build it up. Ordered nitrous kit, MSD 6al with the 2-step module, and thinking about ordering the MSD coils and wires and a timing control box.
By the way it's a 2000 cavie OHV, my goal with this car is to have it as a sleeper.
Also if I retard the timing 15° will that be enough to back fire during 2-step?