I also purchased the pre-bent one's and they fit perfect. I also bought the SS Vacume line for my 1953, 1954 and my 1958 truck's and they are awesome. If you're doing a restore and you want it to look factory and you want to be proud to open the hood at a show save you money and buy the pre-bent units. of course that's just my opion and I love reading what you guy have to say. I'm here to learn and help.
Scott