It took me a while to mate the turbo and the manifold. I couldn't find any cap-head screws to fit the threads on the 14B. So I had to use a 3/8-24 tap to go over the original holes on the turbo and to match the 3/8 cap bolts I pickup from the Industrial hardware store. I then used a 25/64 bit and a 7/16-20 tap to secure the DX mani to the adapter plate.