just throwin' this out there, but you didn't happen to line up the ring grooves did ya?
something has to be causing pressure in the crankcase, and compression is about the only thing that'll do that. if it was a ventilation problem (oil gets hot, has to push the increased air pressure somewhere) then it wouldn't be coming out the vent, it would be pushing it past a seal. but since the oil is coming from the vent, the vent has to be clear. that only leaves blowby.
the ring end gaps aren't too big?
was the cylinder bored or at least honed?
did you use synthetic oil for break in? synthetic is NOT recommended for break in, because it works TOO well and will not let the rings seat.
"When life's never dull, wear a hull for your skull!" -Phineas Fletcher
BLUE ('cause it's the fastest, most powerful color)'07 660 with a whole pile of stuff added!
BLUE ('cause it's STILL the fastest, most powerful color)'09 550 w/EPS
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