Famous Bob you are saying that you used the "Original Tee" that I call the Distribution Block on the frame below the master cylinder. So more than likely this is a Drum/Drum distribution block, unless your car came with like the Kelsey Hayes 4 piston front discs from the factory. If you have a factory front disc/drum brake car that you converted to Willwoods on the fronts and Other Discs on the rear. Now you have a Disc/Drum distribution block with a built in metering valve for front disc brakes in this senario.
Sake of conversation: In round numbers front disc brakes take 3,000 psi pressure to actuate where rear drums take 300 psi to actuate. Kind of looking like you need to get a Disc/Disc Distribution Block on there so that you are sending out the same line pressure to the fronts as you are sending to the rears.
Watch this RamMan youtube video on the Mopar Brake systems and see if you can pick up on what is out of place for your new aftermaket disc/disc setup.
Great Video explains the Mopar Hydraulic Brake System very very well.
