New SAT studying

so i just read the How i raised my SAT score by 790 points forum thing. Since there is a New version of the SAT how can i study to increase my SAT scores without many resources like only 4 practice tests? how can i increase my score? what should my study plan be? i use khan academy currently and its good but i may finish the entire thing in a few months. what books do u guys reccomend? what should my study plan be?