residual check valves ?

Aaron,
Do I need any residual check valves when using my manual mcpv-1 (disk /drum) m/c ?
I assume with the adj. proportioning/metering valve I dont.
Please advise.
Instructions don't say either way.

Thanks , Roger

Good Morning,

If the master is up on the firewall you dont; if it is down under the floor lower then the whell components they are a good idea to run. 2lb for disc (Blue) 10lb for drum (red)

which valve is it that keeps the fluid on the rear drums ?

10lb for drum (red)