Even though I greatly admired Mike Mentzer's physique I don't agree with everthing he said. One example was when he applied mathematics to gaining weight and said that all you needed to gain about 10 pounds of muscle in a year was an extra 80 calories per day (3,000 x 10 / 365). This makes sense from a mathematical point of view i.e 3,000 extra calories equals 1 lb in weight multiplied by 10 equals 10 lb divided by 365 days in a year. However, the human body is a homeostatic device and wouldn't even notice 80 extra calories per day. To make big changes in a physique you need to change your homeostasis to a new level and consuming so little extra calories per day will not do this. Eat BIG and train to failure in your training on the basic compound exercises and you'll grow END OF!! To coin a phrase 'it's not rocket science'.
Actually Mike later found that there is a metabolic cost to building muscle and more calories were needed than he originally calculated, in Heavy Duty II: Mind and Body he recommended at least 300 to 500 extra calories a day about your maintenance level of calories to build muscle.
He recommended a balanced nutrition plan by getting your daily complement from the four basic food groups, of 1) cereals and grains, 2) fruits and vegetables, 3) met, fish and poultry and 4) milk and dairy products.
He also recommend the following ratios of the marco nutrients 60 percent carbohydrates, 25 percent protein and 15 percent fat.
To really clear your mind of all doubts you should to get Mike's DVDs, they will answer all your questions, show you the form for all exercises, etc. It's like having Mentzer as your own personal trainer.