here is the parts cars setup stock single pot. with distribution block View attachment !!!!DSCF4805.jpg
here is the flow of the block it looks like your using. View attachment !!!DSCF4809.jpg
rotate this picture to 90 to match the original setup and you have the line hookups.
here is how I did mine (I used the 5 line setup with a proportioning valve.) if you have an inline adjustable you can use the 4 line distribution block and just plumb in the line to the rear. without going through the distribution block. View attachment !!!!!!!!linelock11111.jpg
