Originally Posted by
Dastardly
I would say 3500 is bare minimum for an active person engaged in sporting activities to merely recover/not burn out. There was words in the UK press about the RDA of 2500kcal (for sedentary men) being upped to 3000kcal. So if you think that an average sedentary man can intake 2500-3000kcal without getting fat, and then remind yourself that you are doing a considerable amount of strenuous activity that is hard on your body and that you actually want to not only prevent burning out, but progress in strength and grow muscle, strengthen connective tissues and bones. You have to realise that you need to be eating a lot more.
At 21/5'11"/165lb I think you have a lot of room for easy muscular growth and you would be silly to waste the opportunity/make things awkward by not taking it. You already have enough protein. calories come easy, just "DO THE EXPERIMENT". Go balls out in your consumption and see what happens, if you dont like it you can always change it up, but until you try you do not know.