Bringing this thread back up.

Seems like a couple people have now tried 7/8" master cylinders and they didn't make a big enough difference?

My brakes stop the car fine on the track but I have to push as hard as I can on them and that means I am not able to modulate them. I'm very willing to swap out the master for a 7/8" bore size but obviously only want to do that if it will definitely make it better.