retorque heads to solve issue?

I used plan old .039" Fel-Pro gaskets and ARP head bolts with my Speedmasters and everything is dry/clean after many drives. I don't recall on this go around if the decks were cut.

It could be coming from the China walls, basically the seal between the intake and block. I had 1 leak there in the rear by the oil sender and had to redo the intake gaskets.

Honestly, unless its a major leak or your loosing a lot of oil making a giant mess I'd leave it and watch it.

One mistake people make with ARP bolt and studs is using the stock spec for toque. You need to know your fastener size and decide if you are going to use 30w oil or ARP lube and torque them to ARP's Specification.