I'm coming up with 9.75 static, 8.85 dynamic, 180 psi , you could get by on 91 octane , but if u could dial it to 9.5 ...ud be in the 170's cranking psi.
Try playing with the Wallace dynamic comp calculator, everytime Ive run the numbers with any of my motors...it matches the cyl psi I find when testing ..great calculator.