I have a 83 turbo block that was taken to 40 over and now needs to be rebuilt again. Not sure if the damage is to bad or not. I have a odd fire block can I use it with my 83 crank and heads? Is there a difference between them? My plane is to put this in a Triumph TR7. If at all possible I want to make it blow through instead of draw through. And possibly use a twin turbo set up.