Ring gap?
Sealed power hypers get the std gaps. And the old rule of thumb is .004 for every inch of bore. I use .004/inch for the top and .004/inch plus.005 for the second ring. So it would be .017 for the top, and .022 for the second ring. IIRC the KB hyper specs start at .006/inch of bore and go up from there depending on use.