Engine Performance problem
1965 Cadillac Deville V8 Two Wheel Drive Automatic 79,000 miles
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my Cadillac blows cloudy gray smoke and, it's burning oil slowly but showly. I was told that it could be a Oil Seal or needs new heads...

Sounds like Rich A/F mixture -Burning oil-do a compression or leakdown test to find out where its leaking at.

rasmataz wrote:

Sounds like Rich A/F mixture -Burning oil-do a compression or leakdown test to find out where its leaking at.

oil leaking could be a seal, try valve cover gaskets first start at the top

burning oil could be valve stem seals or stuck oil rings, with the valve covers off you can change the valve stem seals if you know how, you need a air compressor and a valve spring compressor, I would start there