Meepamous, it's not the keepers they hit, it's the retainers. You might have positive enough offset retainers that they don't contact anything......but that's unusual. Unusual because most times, instead of going positive with a retainer, most HP applications are going negative to gain more spring height and with those dumbass extended rocker bodies, that is really dangerous. They essentially act like a valve spring compressor and hit the retainer unlocking the valves.
Now, the PRW stainless rockers, I really like and they are made from chinkesium, too, but are much better quality. Stainless and bushed with NO extensions on the rocker body. They even come with good hold downs. No sir, I would stay as far away from the Pro Comp rockers as possible.......although I do think there may be some other products they make that might be useable. Our local head porter, Jerry Killian is nationally known and he likes their head castings. He says contrary to what people think, they are actually cast in Australia, not China. He says he's talked directly with the manufacturer in Australia. I've tried to verify it, but I cannot find anything. Since he ports heads and I don't, I tend to believe him. But you never know.
