Alright so I just finished 16 weeks of 5/3/1 and am looking to add some more meat onto my frame. Before 5/3/1 I trained Sheiko for 16 weeks so for 32 weeks my training has consisted of either high volume with reps from 3-5 to low volume with reps from 1-5. I'm 142 lbs. right now and am looking to get to around 150-155. I'm using these next 16 weeks as downtime from the low rep training so I can train in a different philosophy my body isn't used to. I would like to keep my strength gains to keep progressing but wouldn't mind them slowing down a bit if it means I can add more mass/muscle.
I've read most of the stuff stickied here and have a general idea how to gain mass but am looking for a program template such as 5/3/1 to use as the basis for my training. So the question is what program will allow me to gain mass while still having a steady strength growth rate? I apologize if this is more of a noob question so if it should be moved to the beginner's forum then it should be moved. Thanks!