157 x 15 = ~2350 + 1000 = 3300-3400 calories, that should help you gain quality weight without much fat gain. Personally I say eat like 5000-6000 calories a day and Squat, Bench, Deadlift, Press, pull-up, swing, and row. Don't give a shit about "clean" eating at your age and weight, eat every fucking thing in sight. When you aren't lifting you should be eating or sleeping. Stop that running shit. If you aren't willing to do that, you don't really want to get big. I went from 165(I'm also 6'2") to 240 in seven or eight months doing that, and when I dieted back down I was a ripped 205.

People think they eat, they don't, you have to eat like its a sport, it's actually hard as fuck.