So my truck is running out of top end power and I'm running out of stuff to replace. Around 2000 RPM or so it will run out of power about half the time and some times I'll just be in the way merging into traffic. I've been doing research and replacing more stuff as I go. I have I have put in new fuel filter, lift pump, and new FCA from Geno's garage.

The other issue is every once in awhile the truck will stall out. Just stumble once and die. It will fire right back up like nothing happened. It has happened more while I let it idle for more than 10 minutes but it has happened once while I am driving.

Anyone have any ideas of what else I should look at?