Help! I have Manual brakes on my 39' Ford Coupe.Twenty-two years ago I built it and I used it weekly. The Front brakes are Granada Discs. The rears are regular 10" drums (Bronco 9") with 13/16" wheel cylinders. I was running a 75' Nova master cylinder (Under the floor) that has a 1-1/8" bore. I finally deceided to change it because the pedal pressure was to hard for my wife to drive the car and, it never really stopped good enough to lock the brakes. I purchased a Monza (3/4") master cyclinder and installed it. I am runnning 1/4" brake line out of the front and rear, master cyclinder outlets. I have a 2 pound Residual valve going to a "Line - Loc" and a 1/4" line going to a T connector and two 3/16" lines splitting off to each front brake. For the rear brakes I have a 10 pound residual valve going to an adjustable pressure control valve going to a 1/4" line to the rear axle and splitting to 3/16" line to each rear brake cylinder... then I bleed the system. The Brake pedal now goes to the floor. On Jackstands, with the brakes applied, the front brakes lock and I can't turn the front tires by hand. However, with the Rear brakes applied, I can turn the rear tires if I apply some grunt. So... needless to say, I can't drive the car now. Sould I try switching the 1/4" lines out of the Master Cylinder to 3/16" inch or should I try a 7/8" or 15/16" or 1" master cylinder? I really don't want to run Power brakes! Any good ideas appreciated...Thanks.