I have just finished a Hydraboost swap on my '92 5.0 LX using a '96 GT system and I have a small dilemma. Everything went great with fitment and the system works great on the shop floor but when I did a road test the front brakes hold some residual pressure cause wheel lock (RATS). I have worked my way back from the calipers to the distribution valve replacing parts as I went with no luck. The master cylinder is new and I even went so far as to change the boost pump, still I have the same problem. Does any one have some inside information or suggestions that might help me? I have thought about shimming the MC out from the booster to see if that helps.?.