I am trying to help a friend who has done work for a customer. The car is a 2015 Challenger 6 speed manual . The engine has been stroked to 6.4 and the cam duration is 224I/232E . The car is running, but needs computer tuned for this combination. Car is in Southern Louisiana. Any suggestion on who tunes these , preferably in this area, or otherwise he can dyno the car locally and send data to someone to tune computer or ? Note: Street Car
Thank You, Ron

Try flyin ryan

If it's a 2015 or newer it will need the computer sent in to someone (likely diablo sport) to be unlocked. None of the tuners to my knowledge (at least up until last spring) were able to unlock the PCM. You HAD to send it in for unlock.

Ideally you can get someone to dyno it, but a lot of times a good tuner will be able to give you a base tune and you can "road/email" tune it. The Diablo Sport units will data log, so you can go make some full throttle runs, and then send the log to a tuner. They'll make corrections to the tune, and send it back. I'm not sure what the limit of upgrades are before they can't email tune anymore.

I highly suggest hemifever tuning... they did my '16 Scat Pack and couldn't be happier with it. They only tune Hemi stuff.

https://www.hemifevertuning.com/

Arrington in Virginia does a lot of Gen3 stuff. www.shophemi.com They might be able to help you out. Not sure if they handle that sort of stuff, but you can try AMS racing in Louisiana. Raymond is top notch.

Arrington is in Michigan now, also very good.