I recently bought a 1984 regal ttype. I have had a number o gbody cars over the years so I am familiar with upgrades common to all of them. This is my first turbocharged gas car(Ive had a number of turbo diesels). I'm not sure about what all has been done to the car but I do know it has a "cold" air intake w/ k&n filter and 3inch cat back flowmaster exhaust. The computer appears to be stock, but it is going out. I occasionally have to tap it to get the car to start. So that is going to be my first upgrade. My eventual goal is to get the car into a low 12sec street car. I have some mechanical skill and own a paint and body shop, so while it doesn't look good now I can fix that.