Brakes, check valve location?

[67chevemall]

To save some money I am going to try it w/o the master booster.

I have the port vavle and 4 check valves to put in.

Where do the check valves go? There is only one line going to the splitter on the lines, but I have 4 valves to put in.... 2 10psi for the front disc, and 2 2psi for the drums.

Do they go right before the wheels or do I have to run four new lines and place them by the master cylinder??

hummm...smoke break