Scotty47, do you really need headers??...or is it just for bling. Unless you did a LOT to that 350 your not going to gain very much. In fact, I have a set of hugger headers under my work bench but they just don't do much for me.
I put a small block in my 52panel and used an old set of headers off a 283 which are referred to as ram horns. I blasted them and gave them a good rub down with calyx and they really make the engine look clean/original/natural and can be touched up if needed very easy. The ram horns can be purchased new if no originals can be found. (just my opinions here)
....however, as we all say here, its your truck so if you want ceramic that is perfectly OK