where can i get a manifold that would fit a t25 or t28 turbo to a D series engine???

greddy makes one...

or you can use an HF manifold and have a machine shop fab you up a plate to bolt the turbo on

here's my hf manifold with custom flange to fit a 14b



http://personal.lig.bellsouth.net/lig/j/d/jdblack1/sig.jpg