I used all tomes on my PC. Can I re-import the char and play again to boost stats for bg2ee?

Is there a 'cap' on stats when I import a character into bg2ee?

Lets say I want to play BG EE one or two more times, with a single character all the time (for boosting stats before playing BG2EE). Or maybe just run to the tomes of CON and CHA (that are pretty easy to run for with a lvl8 PC in early game) and reimport? Is this possible?

Thanks in advance!