220lbs - 300lbs

[Buster Brown]

80lbs of lean muscle only would probably take a good 5-6 years of steroid cycling.

Everyone is different and will respond differently. I have found personally a gain of 10-15lbs of pure muscle tissue in a year to be my average

Once you get past genetic potential that will not be the case.....if it were we would grow to be godzillas.