Brakes

I Attended the SCCA Track night. Enjoyed it till I boiled the brake fluid on the third outing. Managed to get it off the track and brakes worked well enough to get me home. Upgraded to better front pads and rotors as well as new rear shoes by the same manufacturer and changed to DOT4 fluid. I had just replaced the master cylinder a couple of weeks before the track night. But now I cannot get a good pedal(pedal will push to very near the floor). The rear drums are adjusted to just drag on the drums. I was wondering if boiling the brake fluid could take out the master cylinder? Oh yeah no other leaks. TIA.

Prob not. Most likely air pockets

Last night it came to me that the master on the 3rd gen f bodies is on an angle and needs to be removed and bench bled to remove all the air. I will try this before springing for a new master