It would have to be a really really tight converter with a awfully high stall and you would goose it pretty hard for something like that to be possible. I've daily driven a 4k n/a stall on the street successfully as well. My friend Jimmy has a 4400 stall, very tight (for nitrous) and if you didn't get stuck in traffic you could run errands in it all afternoon, as long as someone else was buying the gas!
