I will try and get a pic of how close my turbo is to the shaft. It will rub at times. Mine is a T4 with a tangential housing on a 292. The 250 is almost 2" shorter. A on Center housing will not move the turbo up that much higher. Will try and get that pic too.
Snow, Have you thought about just making a turbo exh manifold from weld ells?
Inliner Member 1716 65 Chevelle Wagon and 41 Hudson Pickup Information and parts www.12bolt.com