[s10quint]

I'm having a problem with the brakes on my s10 blazer. I recently installed rear disc brakes. I'm using Cadillac rear calipers w/ e-brakes, 4wd s10 front rotors, a master cylinder off a '94 Camaro w/ 4 wheel disc brakes, & a disc/disc combination valve (purchased online). I put this system together myself & everything fits like it came from the factory. My truck brakes feel as there's not enough pressure to stop the vehicle. I have to step extremely hard on the brake pedal in order to stop the truck. Also, the brakes tend to fade when power-braking. Is there a way to increase the brake pressure? I have a 355 SBC in this truck & I need it to stop on demand. Any help would be greatly appreciated.

[timothale]

I'am not a brake expert but some things to consider, are bore size in the master cylinder vs calipers, what did the cad have and brake pedal ratio. and how much vacuum does the engine produce. A lot of Cam will reduce engine vacuum/