Oh I haven't! I've been doing alot of research with it. The only way I'm going to be able to afford it is the speedmaster roller rockers. And so some slight modifications. Comp makes a set that oil through the pushrods and feed the needle bearings and rollers, but they are almost a grand on rockers! I don't have that kind of money. I'm looking in to other ideas but the speedmaster roller rockers look like the best plan of action for my budget