Fuel and compression questions

I think you will have problems IF (!) that is the correct dynamic comp.
Usually, some where in the mid 7's would be more appropriate for pump gas.
most important thing to determine dynamic compression would be the intake closing point. Most cam manufacturers supply this. Another tip; if the cranking compression goes over ~170, you will be out of the 91 octane range (unless you really have things "sorted out). So, bigger cam, wider LSA or retard the cam all could help.
I would think that cam would have less dynamic than that, Are you sure that is the correct number?