those look to be the summit shorties that didn't work for IMGTX in his E body--IIRC in his car the collector hit the steering shaft.

I'm debating if I want to try these edelbrock 66013 headers in my 5th ave



they're slightly longer and might take care of the clearance issue IMGTX had, and they're coated stainless...the downside is they're $460, or $30 more than bare dougs headers (but $130 cheaper than the coated dougs D453's)