pep

Hi All, I've looked in the various forums but have yet to find anything related to how we can get a little more "pep" in our 2020 Jeep Wrangler Unlimited Sport S 4WD. Not looking to go crazy, and definitely not looking to tear down an engine, but has anyone come up with a way to add some more...

I have a 93 xj 4.0 with a pulsating idle at start up. This is a new issue as I just changed out the fuel pump and all related hoses. The idle goes from about 900 rpm to 1100 at start up. Seems I spend more time under the hood than I do driving. The rig run fine lots of pep no power loss. If any...