I put together a high pipe system around 1980.
Started off with a turbo pipe, then built flange and back pipe.. later put a megaphone on it. It runs above the dyno, tucks in, till it get to the notched sidecover, the runs downhill.
Will try to bump up a thread with a pic, then someone can cut & glue it..
High pipes rule, love them..
Check out page 2, Pennzoil Test thread...