Am I to assume my oil rings are going ? New Edelbrock RPM heads. Power is excellent but when I get on it and rev to 6k I am fogging blue. At idle a-mid acceleration no smoke, but when I give full throttle and let it stretch its legs--blue cloud. The motor did the same with the old 882 heads. It's winter cold and she is down for a couple of months. Just trying to wrap my head around a new short block. PVC is good and I have a breather which get oil mist on the Valve covers with either heads. The block ends on 010 and might be original.