I had a 1985 6.9L with a Hypermax turbo system on it. I advanced the timing and put an injection pump and injectors out of a 7.3L factory turboed model on it. I also put an intercooler off of a 2002 PSD on it. That made a huge difference on EGT's.
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08 F-150 FX4 SuperCrew
K&N 63 series CAI
MBRP Cool Duals Cat-Back Exhaust
Gryphon Programmer 
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