I don't have the black breather box on the back of my block . A friend hooked me up with one but I'm not to sure how to hook it up. I know about the freeze plug the box goes in and the line from im to pcv and down to the box I've seen threads where they tap the block for the other line . The problem is my engine is built and in my car is there any other alternatives to hooking up the line to the block . I just got the car back n it's my daily driver. Need help thanks ...