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Still believe to see top end gains one needs to get the air fuel mixture right at all RPM ranges so injector work when adding a turbo. As for the 200 psi rail pressure I have increased in a couple of mine to I crossed my fingers that I did not flatten my cam. Yes you must be care full with that...

One would think ignorant is an opinion not a fact. I do not know why you are having trouble with your PT AFC rebuilds or how long they last so I can not comment on that. I would bet many trucks ran many miles with no trouble with the AFC. My 915A1 with the 400 Cummins never gave me any trouble...

Yep no expert here myself but sounds like you got a good combination with correct turbo and fuel. Yes bigger injectors but that is where we are going to get the real power increase and all the other problems that come with it. Would seem like a well built higher HP / torque motor can be built...

Yep and the op lives in California the they take the emissions seriously.

Now I was told by my injection pump man that had his own shop and worked on the Cummins in the military stock 250 rail pressure not to go over 200 psi. It will do nothing for performance and just put more stress on valve train / cam shaft. Yes on bringing rail up to 200 max and do not go silly...