If you're going for pure size you need to build explosive strength.
Type IIb muscle fibers.
Look it up. These are the muscles types that are adapted for quickly lifting much, but which tire quickly. Anaerobic workout.

So, If you're looking for size, work to increase 1RM (repetition max.). Basically you're working here between 1-5 reps.


I'm not going to say much more, since I'm not in any way an expert.
I think you can get a program suited for your goals in most serious gyms now a days. Just go in and say you need some aid constructing a work-out program with your goals, and you'll probably be able to get somebody who really knows his shit kit you up with a proper program.

Cheers.