[Turbo Dan-O]

As a basic rule more ignition timming is good for FE/low end power and the same for more compression. I am going to bump up the compression on my Metro soon and I have been wondering how far to take it. I know I am going to have to back the timming up a bit with 87 octain and more compression. I am sure it is diffrent for every car but has anyone done any research on this to find the "sweet spot" with the two? My plan right now is to go from 9.5:1(stock) to 10.5:1 on my car. I feel good that a whole point of compression and a few less degrees of timming will make the car have more power, get better mpg and still run fine on 87 octain. I would go to 11:1 or more but I am scared that I would have to pull so much timming out that it would be gutless and FE would drop. What do you guys think?

Dan-O