propotioning valve ?

[Ed Wright]

If you have an F body like mine ('93/'02) FJ has a great master cylinder kit with the MOPAR cylinder, mounting plate, firewall brace and instructions for drilling the pedal to correct leverage. Works great.
He offers a lot of great stuff for these cars.

[MLP]

Originally Posted by Ed Wright

If you have an F body like mine ('93/'02) FJ has a great master cylinder kit with the MOPAR cylinder, mounting plate, firewall brace and instructions for drilling the pedal to correct leverage. Works great.
He offers a lot of great stuff for these cars.

And PLEASE make sure you have the proper brake rod retention device in place so nothing terrible happens. I know two people that have failed to do so and are lucky they survived.

[sst1226]

So I have a question. 69 nova with stock manual disc brake master cylinder 1 1/8" piston and stock proportioning valve, strange 4 piston caliper front brakes up front and getting ready to swap drums out back for 4 piston discs in the rears. Skinnys up front, 14x32s out back.
Will i have to run a proportioning valve to the rear to prevent too much bias/ possibly lock up the rears?
I foot brake the car if that makes any difference, usually leave off the foot brake at 4000rpm.