setting up brake valves

I'm plumbing my brakes and have a question about how to setup my front brakes. I've been looking at MPbrakes, and they show a proper disc/drum underfloor setup with the metering valve having 2 lines coming out of it, with each line getting a residual valve. Will it hurt anything if I plug one side of the metering valve, then run the other out through a 2# residual, then a 'T' block to split to the left and right? I know this is being cheap, but I don't want to have to buy another residual valve.

My source for the proper setup is here, towards the bottom on the left.

 

What is the metering valve?
If it is just a splitter then your plan will work.

If the "metering valve" is a proportioning valve or RPV then you may cause some problems.

I have one line out of the Disc master cyl, through an RPV
then to the LF brake where it splits to the LF caliper and RF.
TZ

 

stop and think things thru for a minute. you want to skimp on your BRAKES for a $20 part. don't do it! you came this far...

if i read your post right, you'll be running a single circuit, do you still have drums all around or discs up front? if you got discs you'll need to run a dual circuit system. if you got drums, a single circuit will do, but dual is smarter. go to the junkyard, get a combination valve from something, it will have everything all built into it.

 

ok, let me explain a little better why I brought this up.
first of all, i'm running a dual master for disc/drum. The rear will be setup this way, master ->10# RPV -> T-fitting -> wheel cylinder. The front is what I question because, if I use a combination valve, the mpbrakes site shows it as acceptable to plug one of the ports on the combo valve and run a t-fitting with one 2# valve. So is there really a difference between the metering valve and the combo valve when it comes to plugging one side of it and using a single 2# valve?

oh yeah, a metering valve holds off the first 100 lbs of pressure to the front discs so that the rear has a chance to start grabbing, that way you don't wear out the front brakes too quickly. so i guess it is like a proportioning valve.