Bust your balls until you cry for milk just train hard and each body part you train will tell you when enough is enough iam sure you will figure out then on how many reps. Its like eating apple pie. Tear. It. Up. Mad Dawg!

i like too train with heavy reps on all sets. 6-12 reps.

I do 6 sets for biceps and triceps
12 sets for back, chest and legs
4 sets for calves i do high reps for calves with heavy weight.

But it depends how u pair each muscle too