318 La with 360 heads

I get that from 8/1 to 11/1 is only some 4 or 5% power difference. Power is measured at some peak rpm usually between 4800 and 5600 for a streeter. Ok so at the racetrack, that engine is never asked to pull in the low-rpm arena, so who cares about Scr if you just want have fun.

Ok but on the street, likely 95% of the engine's life is gonna be spent at low rpms. It behooves you to run as much compression as you can find, yes even at the expense of absolute power, so long as the cylinder pressure does not put your engine into detonation. This is to punch up the bottom end, you know, so you can spin tires with the meager stalls and gears that our cars usually come with.
In that regard, the engine I detailed will run 87E10 at WOT, without complaint.

Yur never gonna get there Normally Aspirated, with dished pistons. never.
Well maybe with 4-series gears and a 3000stall, but that don't help you to make power, it just makes a sucked out 318 spin tires .
With dished pistons and large open-chamber heads, yur looking at 8/1 at the very very best. Couple that with a small cam with an Ica of 57* and at 800 ft yur looking at a dynamic C/r of 6.7, and cylinder pressure of 126ish. Your take off will feel like a slanty.
Tire-spin? forget it.
Fuel-economy? forget it.
Passing power? forget it.
Fun times? forget it.
126psi is snailsville, my lawnmower can better that.
To make that 126psi, seem bigger than it is, yur gonna have to spin it up into the 3000s, so right away you have the additional cost of a Hi-stall. And to make a sustained spin, yur looking at 3.91s, another additional cost.
And now your 20mph 318 is down in the 12s or less.
For what reason? Because you want dished pistons? I don't understand your thinking.....
I already told you, you can run 180/185 on 87E10. with alloy heads. You need that pressure. Some guys on FABO say they are running 200psi still on pumpgas. I'm not saying that you should, but rather that 185psi is safe to run with alloy heads.
If you really want to run dished pistons with 360 heads, then you should slide a 360 under them. The factory already engineered that to work with 87E10.
Yes you can make yur 318 run with 360 heads,and dished pistons, but you are looking at a ceiling of ~150/155psi,on 89 to 91 gas, and lots of machining, or a really small cam.