Hi 83Zwigen-------------The clutch on your '83 n/a is a 225mm unit, providing it's stock. The 5-speed turbo cars were equipped with a 240mm unit, and for good reason. The smaller n/a clutch is inadequate for this application. You can also find the 240mm clutch in some of the 2+2 cars, I think '82 and '83 2+2's have them.
The stock injectors should handle 10 lbs boost without a problem if you're talking turbo injectors. Just be super aware of any knocking or pinging sounds for the first little while.
Roadman
Gulfport, MS