Porportioning Valve Question

[wldhors2]

I have a 67 Camaro that I am working on, Wilwood front and back disc brake set up, Hydroboost with Wilwood master cylinder.
Do I need a proportioning valve for the back brakes or can I just leave my lines hooked up to the distribution block then
to the new master cylinder, the car is only going to be street driven.

Thanks, Ron