Honestly, I would not reuse the D-Jet injectors, they're VERY high flow and I feel that a lower flow injector with a wider width would atomize the fuel better for more mileage.

That having been said, I've looked into it before, and it does seem very do-able, you'll need a new MAP, temp sensors, and a way to mount a new (REAL) TPS as opposed to the Throttle Position SWITCH the D-Jet has. Oh, and drill a hole in the exhaust for an O2 sensor honestly. Do it right. Use a heated O2 sensor, wide-band.

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

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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