Assuming you're swapping like heads, you shouldn't have to do anything special. Turn the engine so the #1 cylinder is at TDC (check the crank pulley timing mark to make sure you're not 180* out) while you have the head off, then when you put everything back together line up the cam sprocket with the mark on the timing cover and you should be pretty much spot on. It's pretty simple on the 2.3L, I did lots of timing belt changes which boil down to the same thing.
2005 Mustang GT
CMS Stage 1 cams, Lito Tune, C&L Racer, CMDP, SR UDP, JBA LT's & catted H, FRPP Touring AB, Koni STR.T, BMR springs, J&M upper/mount, BMR lowers & brackets, J&M pb, Steeda Tri-Ax, Brembos
2009 Ranger XL SCab-4.0, auto, 4WD