This is the link to the headers that I used (with a stock k member , but cut the flat webbing out on the back side of the original k member ) the first time --
http://www.speedwaymotors.com/Garage...ain,42966.html .Then the second time I messed with the sbc stroker in the mustang I had a set of 72 GMC truck headers (headman) that I changed 3 tubes on the drivers side and lightly dinged the outer tubes on the passenger side to a AJE k member .I hope this helps