My squat is limited by form and a general inability to not be a bitch, so that's part of it. However, I don't think my squat is likely to outpace 2x my clean anytime soon. I can power clean 235, so it's not squat ability that's powering my clean numbers.
As for bench, I can't really imagine cleaning more than I can bench, barring some overwhelming increase in technique. Pretty much everyone I know who does any oly-lifting benches more, if they bench at all. The guy who taught me (a local CF owner) cleans 315, and can bench 315 by like 8. Cleans are fucking hard.