just converted my system with a new master cylinder,used brake booster. but im having a problem with my pedal. if i push on the brake to switch from park to reverse/drive the pedal wont come back, car wont move for at least 10 sec. then starts to creep. pedal feel is firm and i did bleed the brakes at the master when i put it in. im thinking it's the booster but i heard they never usally fail. called all local parts stores in my area nobody can get them new. i might try another used booster with a pedal from a 87' monte as well. i did redrill a new hole in my stock pedal also to match the new booster. if you have any suggestions that would be great.