Once the hardware is pulled together and proven reliable the fuel and ignition management are the key.....
ECU to retard 6 degrees/1k RPM from 5k
Steve - you are right on the money.....hardware is "simple" but the maps are *critical*. (Where did I hear the saying, "The devil is in the details.") Couple of thoughts (a) assuming A-F ratio can be properly controlled with a mechanical fuel control device (with a high-volume / high-pressure pump in the tank) can the factory ECU adequately control timing? (b) regarding your "six degrees" comment, do you mean:
5000 RPM - 6°
6000 RPM - 12°
7000 RPM - 18°
8000 RPM - 24°
or
6000 RPM - 6°
7000 RPM - 12°
8000 RPM - 18°
And I agree with you, I'd rather leave some HP on the table and be safe, but the above degrees of timing retard seem a bit much. Than again, we are talking about a somewhat modest (8-10-12 PSI) levels of boost.
I like this - good TECHNICAL stuff.