Clutch most likely can't handle trying to turn the tires.

If the transmission is stock then you most likely have an open carrier and to get both tires to burn you either have to put in a locker/lsd or you can weld the diff so it turns both sides at the same time (don't weld on a street car, not advisable though not unheard of).

What engine is he running?
How old is the clutch?
He does know that drag radials don't have to be burned right? (you can but not necessary)