Anthony Did you ask Rob about the
oil pump you are running and the pressure. The
oil weight and type of
oil. I have found a couple of articles in old mags about putting a .030 groove in the lower housing of the distributor to help oil the two gears. Titan said there pump is easier on drives than spur gears. There is a company that makes a polymer gear, I am waiting to see it. It is not cheap but is tougher than bronze gear and if wears no metal flakes that will damage the motor. Crane told me you can get between 6500-6800 rpm out of them with the right setup. They have a kit to cut a groove in your block to help lube the roller and cam. I have a set of hydro rollers also but going with a smaller crane cam. How high of an rpm is the question and how much valve adjustment do you want to do? Rick Lake