hi im new to the board here but i have done frame off restos before on other cars. right now i have a 88 iroc z with 4 wheel discs.

sometimes the brake pedal is firm and normal. other times it does to the floor. i think its the master cylinder. im goin to replace that and bleed them tonite.

let me know what you think or if you have any other ideas on things to check.

thanks