Master Cylinder Outlets

[Three Ponies]

I could burn up 1000 words on how/what/ why is going on with my most recent project, but my problem is real simple. I gutted a rolled 90 LX and am planning on using the master cylinder on my project. I did not pull the proportioning block because the project car uses a Ford Racing manual proportioning valve to adjust pressure to the rear discs. So, here's the question. Typically, the front outlet services the front brakes and the rear services the rear. I know the proportioning block changes that equation. Without having the donor car to check, what does the outlet on the bottom route to? Can this outlet be plugged and a traditional front to front and rear to rear (with an adjustable proportioning valve) be used?

 

[90sickfox]

The bottom line on the master cylinder ran to the left front on my car. Hope this helps you out.

 

[Three Ponies]

Where does that line lead to? Directly to the rear brakes?

 

[Mustang5L5]

Fox Mustang was plumbed VERY oddly.

Rear ports are front brakes, the front port is rear brakes.

That line on the bottom of the MC goes directly to the front driver's side brake.

The other two ports go to the prop/shuttle valve, and then to the rear brakes (both off one line) and the passenger side front brake.

Can it be blocked? Probably. But depending on your project, there might be a better MC to use depending on what brakes you intend to run. The fox MC is really only good for a front disk/rear drum setup