I THINK the shaft holes point down. This is so the oil can be distributed to the valves and lifters. Each rocker has a groove and it is offset (not in the middle of each rocker) to one side. They should be clear so the weep holes can work. So if it works with them up, my next question would be are you getting 30psi oil pressure? I am at home, but tomorrow I can check if the holes point up or down for sure. My short term memory isn't getting better.
