Dougs headers vs. patriot exhaust

I just ordered a set of Doug's ...the parts store said that they "say they will not work with a 727 " but they will. No worries. About the Patriot's I don't know. But from what I,ve read here and from talking to local Mopar guys everyone says the same thing.... Tti, Doug's, or I think the Headman shorty headers. Other wise most A bodies have clearance issues with other headers.