When I was in body building phase I did 18 sets of biceps... step it up... change ur workout to 3 ez bar, 3 straight bar, 3 db curl palm up, 3 hammer curl, 3 preacher curl, 3 rope curl... you get the idea.... if ur on sauce 18 sets should be easy... 30 sets for back, 21 sets for chest, 18 tris, 18 shoulders etc... for me I couldn't get a pump unless i did alot of work... and also sandman is right, i love mega sets at the beginning...
Also force reps are great... do one armed preacher curl at a weight u can do about 5 at and then help urself get 10-12 with the other hand...