Many thanks. I saw that but they get 70 for just the flanges shipped (26.20 for shipping which is unreasonable when they will fit a 12.00 usps flat rate box and usps provides the box) but here is the rub. Good 235 Chevy headers use two different size tubes to take into consideration the two siamesed exhaust ports (2/3 and 4/5) and the single ports (1 and 6). Those flanges are cut for just one size. I am sure I could make whatever modifications were required but I would rather start out with a Clifford flange to make a pattern out of. At least that is the plan. May very well end up with the hells gate flanges. Thanks for responding! Mike