coolrcdad-
2400's should do for stock 1/12 racing. It wasn't too long ago that we were running 1700's in both stock and mod 1/12. I ran 2400's in mod 4 cell last season, I ran a 13 triple and made runtime almost all the time.
Stock motors are a little faster these days, but I think even 2000's should have plenty of runtime in stock if you're not way overgeared.
Trips