5x5 bolt circle 14x6 wheel. You'll find hardly anybody makes 14" tires big enough for this car anymore, so a custom wheel may be a good way to go. Lots of trucks are 5x5 so finding something you like shouldn't be too difficult. Just remember a Starfire has a lot of chrome and you might need to go conservative with wheels to keep from looking, shall we say, blingy.
Plus you don't have to fool with those damn wheelcover clips...
"I don't know what the world may need but a V8 engine's a good start for me"
Cracker "Teen Angst", 1992