Good point. The motor runs strong as it is but I'll keep an eye on it. I didn't build the engine so I can't answer your questions but I do know that ARP studs were used.
This is typical of MLS gaskets. Doubt the surface finish is wrong because what you are seeing is SOP for those gaskets. Any bimetal engine requires a retorque. Even an all iron engine should have the fasteners retorqued before it gets off the dyno or after the first few hard heat cycles if you go straight to the car.
