i weigh about 165-170 and i'm in very good shape/ripped. my question is i want to know the best way to build size/bulk up. should i do heavy weight with low reps and sets? like do heavy weight with 5-8 reps and two sets? i spend about a hour at the gym 4 days a week. also how often should i change up exercises,like different ways to work the arms or any other muscle? please email me at [email protected]- thanks jeff


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