Braking issue, some help needed
Alright, I've got an 2000 Z28 that I did the C5 caliper swap on, back in late 2008/early 2009. I'm running Hawk HPS pads, a set of slotted rotors and, SS brake lines with them. About a month ago, the brakes kinda felt like they weren't able to stop the car the way they normally did. It usually stops on a dime, but now its not the case. They don't fill spongy and the pedal isn't dropping to the floor. For the most part they fill normal, but the car's not wanting to stop at the distance it normally does. You know when you're trying to stop and you know you're not going to make it and you get that "oh $hit" feeling. Then you press the brakes harder and you can fell the weight shift when you get more bite, you get little nose dive and then the rear comes back down as you make suddenly come to a complete stop. Yeah that dosen't happed you put more into it and she keeps gliding. Then you put even more force on the pedal and she kinda glides to a stop.
I went to change the pads but I've got like 70% left, so I went to bleed the brakes. There was some air in the front brakes that was bled out, but the results are still the same. Could find no leaks, so I'm wondering where to look next before I have to take her in and spend who knows how much on a fix.
Thanks in advance.