I've read good things about the Moose pump, I am tempted to try it when my IP needs changing, my DS4 decided it wasn't quite dead yesterday but I'll be watching it closely. Something else that I think would be pretty cool would be to swap in a 6.5L with a moose pump into one of the newer Tahoe's. My truck is getting really rusty underneath, its too bad they stopped making them, I'd love to try something like that but a Duraburb is just way out of my budget and I think an all mechanical 6.5L might be a possibility, just have to get the transmission controls worked out. It would be pretty cool to have a new vintage Tahoe with a Diesel.