looking at buying or building or modifying a set.. I would like to do 2in 2.1/8in step header.. for my abody with tube k member and coil over spring. any ideas ?

I bought a weld up kit with the tubes I wanted from Stahl and W-9 flanges from SPD http://spdexhaust.com/ and made my own.
The " kit " was a less than pleasant experience. They would have placed cuts and twists in the tubes they sent me , but couldn't tell me where over the phone. The tubes were numbered , but the finished product looked nothing like their welded header. If I did it again , I'd probably go with the partially welded kit for a little more $$.
BUT......I went with 1 7/8ths primaries. They make a 2 " SB header and you could sure talk to them about doing a step , but they did not seem too receptive to going outside what they offer on their web site.
http://stahlheaders.com/ I imagine there are others you could go with too , but this was my path.

Well......I just checked and do not see a 2" small block header listed now. The kit I got was tubes , collectors , flanges ( which I didn't use ....they were standard port S.B. ) collector tabs and hardware and bolts for around 500.00. Not cheap , but much easier than starting with a box full of U bends.

has any body tried to modify a set low deck big block header. by changing the flange. tti sells a 2-2 1/8 step header. for an abody just thinking out side the box

I have the set I'll sell off Marty's old Duster. I never used them, I built my own. They are a little rough around the edges but they worked real well.

I may be interested in the headers from Marty's duster. Pm me please

"IF" I ever get the car put together close enough to require headers I'll be hauling it 45 miles up the hill to a guy who fabs up some pretty nice pipe.