I hear ya, just trying to keep my boost down on the exhaust side by flow rather than compression. I do know that I lost 2 psi just swapping out to a different muffler on my Lightning and even more when I changed the restrictive factory wye to a smooth merged collector so... I ended up with only about 7 psi from the previously-measured 10 psi and the power stayed the same in both HP and TQ. If I can reduce the restrictions on the exhaust, I can also reduce the boost and still make the same power, or relatively close to it without so much detonation and final compression ratio based on mechanical CR + boost. I do hear you and agree, but again, this is an experiment and if I flow well on both sides, I can better calculate final CR and know flows will be more equalized on the exhaust to intake. Still gotta port-match both in/ex too so that'll be a good bit of laminar increase too. Sorry it took me so long to get back with you, been slammed with work and projects due for the state so... fun must wait and I've been working on our pop-up trailer trying to get it completed before our coast trip in two weeks. I have a lot to do ... Oh, and The Governor's Cup last weekend.. YAY!!! NOVAS EVERYWHERE!!!!!My opinion you are putting too much emphasis on exhaust numbers, even supercharged. The incoming pressure from the blower is going to override any lack in the exhaust port....it would only be a problem if the exhaust ports only went 135-150 cfm max like a stock head....once you get to 190 cfm on a 1.6" valve it is going to be good enough to not matter.
Get it too good and you just end up blowing good mixture out the exhaust during overlap.