Headers on stock 66?

Clifford used to sell the long tube headers that fit with PS. Don't think they're even available from them anymore. The front 3 tubes were routed ahead of the steering box and then under the k frame. There's an outfit in OZ that's making something very similar (can';t remember who right off hand). As I understand it, the shortie headers will fit with PS if the front 3 are modified (shortened up). I will be finding out about this first hand when I begin fitting everything together in the wagon. Wish I had kept my long tubes as they did fit and work with PS.