looking for a headers builder

hi
i own a 70 conv` mustang.
i`m instaling these days a 408W.
heads are TFS 206 R series, 12.5:1, all forged engine.
i have a 4R70W transmission and power rack & pinion from STEEROIDS.
i need suggestions for headers. i could`nt find any at hooker/hedman etc that will fit these heads.

thanks
sefi