its a lot of trial and error, and generally the best thing to do is start low and add evenly every week or two if you dont see any gains. emma's numbers look good, and if that doesnt give you a pound after 2 weeks, add 250 calories. and do that until you hit that first pound and go with it for a while. gaining too fast sucks because its going to be gain you dont want, it took me almost a month of adding and changing things around until i have what i have now, and ive gained about 7-8 lbs in the last 2 months since then while improving my lifting a good deal.