When I got my kit, it did not exactly fit, so I routed it the way it "wanted to go". Big mistake....the valve cover could not be removed without removing the fuel line. I adjusted the angles a bit on the lines and got it where it's supposed to be.
Also, you didn't ask, but early cars used a normal brass Y-Block. Later cars used one with a bracket on it, which attaches to a special stud that replaces one of the intake bolts. The Y block is available repop, but mine was raw brass. It should be sort of a silvery gray color. I used chrome paint from Auto Zone and after it dried, I buffed off the sheen with a rag. It looks almost identical to the real one I once saw.