Corvairs can be made into VERY dependable daily drivers, many do. Lack of maintance or knowledge of these cars are the main killers. Most people don't understand them, or want to understand them. Just like the myth of having to adjust carbs all the time. Unless you didn't set them up properly, or have worn linkage, they shouldn't come out of adjustment. After getting mine together, I drove from Maine to Buffalo in 2006 for the International convention and back. Won 2nd place my first time out with the car, and at an international event. I have racked up well over 6,000 miles on it in the past two summers driving all over New England. Also went to CT last year for a Corvair show and to take my Corsa on Lime Rock, awsome time.
Fast by todays standards? No, not in stock form anyway. Many vendors sell aftermarket hop-up goodies for these, from springs, cams, carbs and exhaust. And for finding parts, probably easier to get parts for these than for a Bonneville
Clarks Corvair parts
Larrys Corvair parts
And this isn't all of them.
Congrats and good luck with the car!!