I have a non-turbo 83ZX that I want get some more power out of. I have the stock turbo, intake, injectors, etc from a turbo model, plus an intercooler. I plan to run stock boost levels of about 5-6 pounds. I know that I need to increase the fuel supply when under boost. I am looking for the best and cheapest way to do this. The options I know of are a rising-rate fuel pressure regulator or an additional injector system. If anyone can offer any advise or comments, I would appreciate it.