Ported 452 or Edelbrock RPM

In the end I installed the RPM heads, but let me be more specific:

I took the heads apart and discovered that all the valves were stainless, one of the exhaust valves was bent. (so much for heads ready for install and titanium valves advertised by seller)

I also discovered that Edelbrock only does 3 angle on seats, valves don't have 3 angle, so I had it done while I had it all apart and waited for a new valve.
These heads were machined down about 0.06" to have chambers at 75cc. This caused a bit of a problem with intake bolting down, but not too bad but I had no problem at atll with piston to valve clearance. Playdoh showed that there was a ton of room.

As for head gasket I decided to go with steel shim + permatex. I measured and it seems that with steel shim I am between 0.056 and 0.058 piston to head distance. Static compression is 11.3:1
Heads are on the engine, I did the psi check after install and found 185-190psi all around.
I used some online calculator to check DCR and it seems my cylinder pressure is in the right area and DCR at 9.03:1.

Did not start it yet but after putting spark plugs in I see that cranking seems like a bigger effort on the starter.

Here is my question: I talked to someone that suggested that I will have a problem with detonation because of poor quench (should be 0.035) and my cylinder pressure should be 200+ with aluminum heads...

On the other hand while browsing the internet I found a big block build with heads like mine, quench at 0.075, static compression at 10.7:1 and pump gas friendly...
What am I missing?

Should I use thicker head gaskets to bring the compression down to stay safe?
I have a set of 1009 Felpro just in case...

I use only 98-100 octane gas. The 98 here is 93 in USA, the 100 here is a racing gas, can not guess what is it in USA. I only remember 100 octane gas at Texaco in USA, here we have V-Power racing 100 at Shell.