After talking briefly with a mechanic, he mentioned the possibility of increasing the performance/power of my HDJ80 by installing a new rod or modified rod in the fuel pump. We were not able to talk about it for long so I have been trying to find some info on it with no luck. Anyone have any idea what this is about or any good threads about it? Basically it involved a partial pump rebuild and it would be something to consider if I ever had to have the pump rebuilt. I am wary of modifying the pump from original specs but I don't know anything about it. It would be great to get some more out of the truck though.