Just put me behind the wheel Bill. I have a bigger foot and more junk in my trunk to push!
Seriously, Which caliper do you have on the front. If it is the Dynalite 4 piston, they also make that caliper with different bores. 1.75" and 1.62" are common. Obviously, if you have the 1.62" then stepping up to the 1.75" would increase your mechanical advantage and normal force.
Also, Did you check into the 3/4 MC like we talked? Doing the rough numbers it looks like this:
With 100# of force on the pedal at a 6:1 ratio, you get 600# force to the MC. With your 7/8" MC you are creating 998psi line pressure.
With a 3/4" MC you would create 1358psi line pressure.
If I assume you already have the 1.75" bore caliper, that has an area of 4.81in^2. The normal force created by the 7/8" MC is 4800#. The normal force that would be created by the 3/4 would be 6532#. 35%+ more normal force is nothing to sneeze at.
As long as you have enough pedal travel to compensate for the reduced volume of the 3/4" bore, I would try this first. If for some reason you can also switch calipers to larger bore, that is even more increase.
Forgive me if I made an error in my math as I was going pretty fast, but you get the picture.
Cost should not be crazy and it should have no impact on the shiny nice stuff! Give me a call if you want to brain storm.
Later!