I agree with mastermind in the post above.
I do the same with my 1997 Dodge Ram Cummins truck. Stock is so

.... The Truck has so much difficulty trying to pass even slow moving traffic that's going below speed limit on a busy highway. It was pathetic.
So the P7100 pump was adjusted... What follows was amazing... I can pass cars with authority! I had so much fun that i forgot to look at the fuel gauge until to late.... out of fuel...

Then auto trans started dying... Dana 70 rear end is at risk of snapping a pinion.
Manual trans went in, dual disc clutch, big

dana 80 went in, new performance injectors, modified the stock turbo, tweaked the pump for more, a little more timing...
Now I have a truck that makes around 400 hp, pours on big torque like a big rig, gets 3 mpg better towing heavy loads than stock or just the pump modified. Now I can compete in sled pulling events without much worry about breaking stuff and just have fun

......
The truck is a joy to drive now, I will never have left it stock... Also when I work with it, I get paid more to haul the heavier loads that would've left stock weezing...
Some things, I do like to keep stock, but some things really do need the extra oomph.