thank you guys. I think I'm going with a m103. I'm going to rebuild it while it's out. I may bore it a little over but I don't know yet. I have been thinking single turbo but may go twin. I'll figure that out when I'm a little closer to putting it in. Roman do you have any pictures of a twin entry manifold with twin wg pipes to the wg valv? I understand the concept i'm just trying to picture how I would set it up. Thanks