My mechanic definitely thinks of them as more of a racing carb. He never said anything about swapping them out. That's more the feeling I get after reading about them being hard to tune, and making some other inferences about "racing" carbs. I was under the impression they are not good for stop and go, daily driving. I have not had the opportunity to drive this much. I've had it for a couple years, but I've been taking care of some other issues--fuel lines, gas tank leak, alternator and a few electrical problems. I finally had this on the road the other day for a test drive, and it just didn't feel right to me--really puttering at low RPMs, and stalled when I was pulling into a parking place.
He's working on the valves now, but maybe I'm just overthinking this. So, correctly tuned these should be fine for a daily driver?
I should add, this only has a 4-speed tranny. I'm thinking of swapping it for a 5.