Check the outer nuts and studs right away, and if you can get the nuts off, Coppaslip them and put them back on then you might obviate some of the problems lots of us have had. Lots of us have found outer nuts and studs missing, or snapped off, unfortunately under the surface of the head. I certainly did and it involved left hand threaded drill bits, redrilling, rethreading drilling out the holes on the manifold once it was skimmed and then fitting bigger studs and nuts.
There are many threads on here and other sites about this.
The very best of luck with it.