shorty headers

I searched but found nothing. will shorty headers work for RB motor in early A body, that is 65 dart manual everything????? I have friend that has them in the wider 66 dart with 383, they worked great. I bet the answer is NO!????????
or will any cast manifold work other than maybe, the mega buck 67-9 oem suckers? I really don't want to do fender well headers...