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He tack welded the front header tube to achieve the cone position he wanted. Each tube is canted up between 15 and 27 degrees at the flange for appearance because the center two ports on a 409 are lower than the outer ports. The return pipe runs above the framerail in front of the firewall. It's almost invisible and gives the appearance of open headers. "I found that a fairly accurate way to position the headers is to look at about 3-foot eye level from the front of the car and see how the cone flanges line up with the lower door hinges. One degree of mismatch will account for about 7/16 inch of travel at the end of a 25-inch tube. The angle meter was for double-checking."