There were two kits. Wide body. Stock body. Stock body gets the valve. You have the wrong one OR you have the first one and the valve wasn't in the kit yet.
Either way, problem solved.
My guess, I think this valve is going to be like the Corvette/Shelby adjustable (competition) rear brake proportioning valve. That's a $120 valve and is a Borg Warner piece.
That one is adjustable with two wrenches on it.
There is another one from Tilton I think that has a knurled knob on it so that you can adjust it without the wrenches.
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