I'm looking for a set of tuned length (long tube) headers for my 86 Olds c/w SBC (406"). I am thinking 1 3/4" tubing and was wondering if anyone has a recommendation. I did a Google search and there does not appear to be very many companies that build these items but I admit I may not be the best at wording search parameters. Currently leaning toward Hooker Competition Ceramic Header 2451-1HKR. One of the reasons I am interested in this header is the shape and length of the collector. One thing of importance to me is that I don't want to have to bend or dent them to fit them in place or start chopping away at the car. Does anybody have any experience with these or have a better idea?