I'm not sure but I don't think you can just order a set of Boss heads, those things are hard to find these days!!! Anyway, you can buy a set of aftermarket heads that will outflow and outperform the old boss heads!!
true but boss is supposed to be very impressive and thats like one of the only engines my dad will help me work on
351c heads will do fine for you,.youll just have to modify the water passages to bolt on,..otherwise same as a boss head