My name is Rob, I have just purchased a 1987 grand national, 65k miles on the clock, garett 60 turbo and a old red Armstrong chip ,adjustable waste gate, adj fuel pressure regulator, 3in down pipe ,ss flowmasters.Stock injectors .Thats about all I know about this car. I have pulled a plug it looks good, and it seams to run good and strong ,I have plans to just drive this car ,no racing ,the gas mileage isn't very good about 300mi per tank.What I want is a great running street car ,from what I have gathered on this site, I need a scan tool and or scan master, a chip/ injector combo and some trans work. What will work for me is my question? Thanks .