Question about brake proportioning valve
 

I am building an 84 chevy crew cab with 1990 dodge one ton axles and Im not sure what to do about the brake proportioning valve. I got the dodge axles with new factory brake lines on them. Both the front and rear axles are set up with a tee in the middle and a single hose up to the frame. I dont have a proportioning valve for the dodge but I do have one for the chevy but the chevy valve has two ports out of the valve for the front brakes so my question is, can I plug one front port on the chevy valve, as thats all I need for the dodge front axle, or will doing so mess up the operation of the chevy valve?

Thanks,
Mike