Really the way to succesfully accomplish your task is to go to a dry-sump oiling system. That way you can keep a good supply of oil at the bearings at all times. For extended hi-rpm use, you can also put an oil fwwd to the front AND rear of the block. With the larger mains, you need to have a larger pump than most engines need and you especially need additional scavanging from the oil pan. Our stock car motors have 3 ~ #12 scavange lines from the oil pan and one from the valley and the bigger CI Sprint car engines have 4 ~ #12 scavange lines from the pan and one from the valley. It is a bit expensive, but, that is the price to go fast and turn!