Well here is our tale. We actually have one that was ordered WITH pushrod oiling from KB and a 55MM roller cam bearing deal. What we got was babbit and 54 and pushrod oil. Calls were made and KB said they could fix it. Well we got back was a 55MM roller cam option and LOST out pushrod oiling. Not exactly what was ordered or paid for so we too will likely end up fixing ours later. Caused us to go with common shaft rockers and we will see how it holds up. Whole engine is kind of a one off deal anyway at this point. We plan to run it for a bit to see how things look after some laps. When we tear it down we will address the pushrod oil issues..