Hey hows it going? I have a few questions about my workout. My goal is streagnth and size. I've been told to do heavy weight at 6 reps with 3-4 sets. My routine is as follows

DAY 1 bACK/BI's
Day 2 Chest/tri's
day 3 shoulders/legs
off
cont. day 1

Is that a good routine or should I do somthing diffrent. Also I will be using as. I also have heard to change it ex if the chest at begining of week is flat incline decline at the end of the week do decline flat incline is this correct. And last but not least should I always do 6 reps no more. Please any advice would work great. Im 210 lbs " 14% bf