[Fldawg]

cast rings will seat up faster than moly rings , did you check the ring gap , i.e. slide rings in where they normally ride and check the gap, sometimes the machine shop will need a set if they bore engine out or the paper work that tells you what the gaps should be for certain applications like running nitrous , or a turbo or super charger , i'm not a big fan of honing out cylinders and putting new rings in because most of the time you set yourself up for trouble. As far as 800 miles they should be seated in. as far as the cranking up and buffing that sounds like a stem seal, as far as the vortex heads go check the oil drain back holes, sometimes they get clogged with sludge and do not allow oil to go back to bottom of pan and will cause oil to blow out tailpipe, maybe this will help you maybe it won't , but these are things that i have run across over my years of being a mechanic