24 Inch of mercury [c)converted to pound/square inch = 11.787 699 654 pound/square inch

Unless I am using the incorrect formula?
http://www.onlineconversion.com/pressure.htm

I believe snowman is starting w/a stock set-up,unmodified carb? Yes/no? He has been getting started for a while now.
I think he needs to do some changes quickly if that engine is to survive running 14:0 & up to 17:0 A/F ratio @ 10 psi of boost pressure on 87 octane gas, no intercooler, & a heavy foot, no knock sensor & a loud exhaust w/no muffler,,,hard to hear detonation I would think?

MBHD

12 port SDS EFI