I posted awhile back about a boost problem I was having and I just noticed today that I'm missing a check valve that leads to the pressure tank in front of the intake manifold. My problem was that I couldn't build boost at wot after I shifted into another grear.
From the diagrams I've seen the should be a check valve in the line that goes to the pressure tank but I don't have one. Does anyone know the part number for this check valve? Can I use any one way check valve or does it have to bee a certin one.

 

Use any one way valve to check it out, put it in the ccorrect direction .