My brake locks up = (

[foamcup]

I just did a j30 brake conversion for my 240sx, I drive the car for a few miles and then it locks up bad, to the point where the car won't move. I have to turn off the engine and after a few mins the brakes would release.

Its seems to be locking up at the driver side at most,

well here is what i have

300zx na master cylinderj30 rotorsj30 calibers

I'm thinking that its the master cylinder, i search around and the only thing that I could find was that it might need to be adjusted, i also think that maybe i should used the stock 240sx master cylinder. I just want to know what you guys think it could be to help me narrow it down some more. So far because of the brakes locking up I also manage to burn my clutch = (, now I have to change the clutch too.

Any help or info would be great, thanks.