Right on, IGF-1 LR3 can definitely put some size on. Are you going to be running any other peptides or just the IGF-1 alone? I'd say 2 bottles of IGF-1 LR3 (2mg total) would be a sufficient cycle.
Most people like to run the IGF-1 LR3 around 40-60mcg/day. I prefer to do mine once a day either post workout or in the morning sub q, either one is fine. Results will be amplified if you throw in some GHRH's such as GHRP-2 and CJC1295 no dac..