99,6XX miles and the injection pump is failing, again. I ordered the new vp today. I need a fuel pressure gauge because the air dog light must not be completely functional. Am looking at a juice attitude cts, thoughts? Why not get the power as well as monitoring is my thoughts. Occasionally I run red, good or bad idea? Do I need a fuel additive? What would you guys do to my truck to help with A) fuel problems and B) mileage? Can't keep dropping $1000 every couple years on a vp. Air dog has stock 15lb spring, should I change to 17lb? Keep in mind I do have emissions here in Denver.