I have a weider pro 9930 series gym set which has a max resistance of about 175 pounds. It has a bench press a butterfly and a few other things i dont use. anyway im 6'5 340 ive been using the gym about twice a week past 6 months. ive noticed muscle gain in my chest and arms. I use the max resistance doing about 3 sets of 10 on the butterfly and bench press. I want to work in some sort of fat burning excersies along with still building muscle. any tips or ideas. Im thinking about getting a set of 40 weight dumbells. also should i work in protein shakes with my workouts or will that just help add more fat.