IMO a good way of brake testing is to do a series of stop tests at say 50mph. Get the car up to speed and then roll into the brakes, progressively harder with each application.
What you will notice when the rear brakes are not working at all, is a goodly amount of front-end dive as the weight transfers from the rear to the front, even with 1.03T-bars. As you increase the rear pressure,and the rear does more and more braking, the dive lessens. Too much rear pressure and it begins to skid. Just right is when the whole car just hunkers down,still with a modest amount of dive, just before rear-end skid. Leave it like that for a few weeks, then adjust as may be necessary to prevent swapping ends.
Then enjoy one of the best darn braking street-Mopars ever built.
I remember in 73/74, a highschool buddy of mine took me for a ride in his newly purchased Corvette (year unknown but looked modern for that year). It was a heck uva ride for sure, BB and all; but the thing I remember most about that car was it's braking. Up to that point, I had never experienced brakes like that.
My 70 Swinger 340,4-speed had pretty good brakes, but it was easy to get into trouble with that car, with its skinny E70-14 Polyglass belted tires, so you had to learn to actually drive that little monster. Come in too hot, and I had to ride it out hoping for the best while steering around obstacles as best as possible. Sometimes winning and sometimes not.
With the Corvette, it had the brakes for back-up when you screwed up.
When I built my car, I remembered that Corvette. And on the budget I had,I still wanted that kind of brake back-up; after all I was 25years older now.The KH 4-piston set-up with 10x2s out back, and big N littles hit the mark pretty close, for this streeter.
That Corvette cornered pretty good too, compared to my Swinger anyway.
I was glad when those factory tires wore out, and I put fat radials on bigger wheels, whoa, different world.
