I'm back, I gave up on the swap meet turbo as the consensus was it was to small. A friend has loaned me 2 turbos. # 1 is a air research T4 model # TO4B35 Compressor wheel 55 by 70, exhaust wheel 64 by 73, compressor A/R .60 Exhaust A/R .81 # 2 is Air research T4 model #TO4B30, the compressor wheel is the same as # 1 and so far the exhaust side won't come off. It is soaking as I write. So going on a 289 Studebaker any thoughts on either unit? One of them, don't know which, was on a 350 chev. This engine will not be pushed beyond 6000 RPM's if that much. Thanks for your input and hope to see you all at the NW Reunion. Barry