Good advice above. Every body responds diferently so experimentation will be necessary. Part of muscle growth is also muscle confusion hitting slow and fast twitch muscle fibers. You will find what works for you but don't be afraid to throw in a high rep week or low rep week. Powerlifting regiments are good because they usually follow a plan for a one rep max. Ask some of the big dudes at your gym what they do and go from there. Having a plan is important as you can measure your progress. Good luck.
One more thing - a key to growth is intensity, whether that be one rep or 20. IMO you have to be intense to grow.