Help with ollies?

first have your bcak foot slightly on the edge of the tail, have your front foot at least 2 inches from the front bolts. now as you stomp the tail (hard!) bring your front foot up toward the nose. AND at the same time begin to raise both of your knees to your chest, the higher you bring your legs up the higher your ollie will be! 2 things change how high you ollie, one is if your front foot is too close to the bolts your ollie will be very low! second is if you dont get your feet up high you ollie wont go up high either so keep practicing