In my 62 post i have built a mild 383 LT1 late model carb motor, full roller, 11:1 comp.
Problem i have the car has done 150-200 miles i have been nice to it and i have also given a few squirts here and there.
The motor has moly file fit rings 1/16 1/16 3/16 how long before they will seal.
When i give the motor a boot full i can pull over pop the hood and theres oil on my valve cover out of the breather.