Just curious. I have a 1990 Supra Turbo. It runs beautifully and have had a lot of work done on it. It just seems to have a lot of engine noise in first gear. It gets quieter once you are in 3rd or 4th gear and on the highway. But initially it is quite noisy when I hit the gas. Is this normal in an old Supra? Car has 68,000 miles.