Sandersons DD7's

I need some headers to go with the new motor im putting into my 72 swinger
Its equipped with- 318 small block with AC, Power steering
I need headers that have no modification required does anyone know if these will fit? their website says they will but i know how ac and "sure it will fit" websites are

here is a link to the website and the exact headers i am looking at
http://www.sandersonheaders.com/Sanderson-DD7-Small-Block-Chrysler-Blockhugger-Header-Set.html

let me know what you guys think and or know from experience please~:prayer: