Welp, I missed that part - whoopsie!

But yes, there's more to just running. Chain and guides... cam oilers, too. If it sat that long the old jelly oil probably is blocking multiple ports and thus the cams won't be long-lived if that's the case.

The other stuff I listed is probably also applicable unless he actually had the fuel system cleaned properly, all the hoses replaced (especially the fuel and injector lines), etc.

__________________
Current:
2021 Charger Scat Pack Widebody "Sinabee"
2018 Durango R/T

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k