First of all, it's nice to join this forum. Thanks to everyone who took time to look at my question. Your input is truly appreciated.

I am 22 years old (6'3, 210) and I've been lifting on and off for about 4 years now with pretty good gains. I am back home for the summer, without a job and with nothing to do but to tan and finally get serious about lifting.

My main question is in how many excercises/sets/reps for a body part would you recomend one do.

My workout is such:

Monday/Thursday: Chest/Back

Tuesday/Friday: Arms (biceps and triceps) and Shouders

Wednesday: Legs

I usually do 4 excercises, 4 sets a piece x 12, 10, 8, 6

More, less, or stay the same? Thank you.