100 Octane with 12:5:1 340??

Going off your cam and what you say the static compression is your dynamic compression is up around 9:1 which is a bit over the safe limit for pump gas. But that depends a lot on your head/piston setup, if you have good squish area and efficient chambers. You may not hear the pinging but I'm guessing your engine is loud as F*%@ (lol) so you would not be able to sense it if it was mild, which is still bad for your engine. What are your rear gears?