Accumulator, Calogero, and ClintB all have fantastic points. I hate to make us 4 sound cocky, but from what I can tell, you could do a lot worse listening to, oh about 99.9% of the other advice out there.
I am 27, 6'3 212 lbs at around 8-9% bf now, and I eat no less than 240 grams of protein a day, sometimes as high as 300+. As mentioned before by the previous posts, it's ALL DIET, by "all" I agree with Calogero, at 80%. I usually quote 85%, but you get the point.
I'm at the point now where my diet is so spot on, that it's caused the most rapid physique changes in my training life (17-27). I've done powerlifting, dabbled in the olympic lifts, and even being what I thought was a "hardgainer" I do extremely well off of high volume, tons of sets, all to get a good pump, trash that muscle group, and wait 7 days before I do it all over again.
By "pyraminding" the below example might make sense (closer to how Accumulator explained it, where you warm up, go heavy, then back off a bit).
Incline Barbell Press (I don't do flat, inclines work the pecs better for me).
135x12-14
185x10
205x6 (just to feel the weight)
225x10 (first work set)
265x5
(sometimes I drop back to 225 for another set, before the burnout set)
185xfailure (typically 17-20 reps to "burnout" the muscle and start the pump I shoot for)