Have you looked at these guys?, page 12-13 Catalog — Tubular Automotive
Very nice race header and no hole but you do have to use adapter plates (they have those as well)which makes it nice for getting at the header bolts. I was going to go with the hedmans but was a little worried about how far the tube hangs into the wheel well since I run a fairly tall tire. I got lucky and ratbastid found me some hooker 5303s and I will say they made a significant difference over the dougs, not even the same car really, took a totally different tune up. I wasn't sure how much gain there would be since I don't have much cam etc. but he made a believer out of me lol!.