Remove the injectors, soak them in carb cleaner. They're probably extremely crudded up. Make sure to clean the filter screens well, if any are broken, rusted or excessively clogged, replace them.

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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