It smokes for several minutes on first start. I estimate it to be 3-4 minutes which seems really long for valve guides/seals. It is not a puff of smoke like you used to see on high mileage Chev small blocks.
The heads were new, if the receipts are correct.
I pulled all the spark plugs earlier in the summer. They showed some
oil useage, but not much and they all looked the same.
If you let off the throttle at high rpm there is no sign of smoke.
There is no indication of blow by in the PVC or crankcase vent. Both are dry.
The only time I ever see anything is on a cold start.
Keep the advice comming I may do more diagnosis this weekend.
John