DrEwDaKiSs

Ok, so I have a 93 Civic Dx that I've been trying to do a brake upgrade on.

The first thing I did was put on 94+ GS-R front arms, discs, and calipers. Everything was fine.
Then I noticed my leaky MC (the stock Dx one). So instead of just getting a replacement (or a 91' Ex MC), I opted for a 94+ GS-R BB & MC (big mistake).
After having my brakes lock up on me on the highway, I did some research and realized I needed a NON-ABS BB & MC so I picked up both from a 94-95 Integra RS.

But, for some reason my brakes locked up on me again today on my way to school.
The only thing I can think of is the prop valve.
I still have the stock prop valve in because I haven't put in the GS-R rear disc yet b/c of various reasons.
Could that be the issue? I think it is because all 94-95 RS's come stock with rear pads & 40/40s.
I'm going to complete the conversion, I just have class and don't have a garage so things become difficult at times.

Any & all assistance would be greatly appreciated.
(Btw, I changed out both stock front brake lines for Earl's SS's because I read one of the stock lines could have been "collapsed").

Thanks for looking, and thanks for the help if you can.

DrEwDaKiSs

Not too sure if anyone cares (or had the same issue) but the culprit turned out to be a clogged brake hard-line. When I removed my stock prop valve (before I installed the 40/40) I disconnected my front and rear brake lines and blew air through each hard-line with an air compressor. The hard-line that ran to the passenger rear was clogged with some crap, idk. But afterward, I reconnected everything, finished my rear conversion, installed the 40/40 and bled everything. Now my brakes feel amazing! This was a great upgrade and worth all the trouble imo. I'd recommend it for anyone thinking of getting rid of their stock drums. Peace.