What are the Hellcat alignment specs and what is are your readings? Negative camber will give you more corning grip but it's all meaningless unless you look at the factory specification vs. actual readings from your car.
If anyone has the alignment specs. it would make a nice WIKI article.... I'll even volunteer to put it out there if needed. I just don't have the specs.
This is a performance car its setup from the factory to run some more negative camber than usual. Negative camber is actually a good thing to a point from a performance aspect.
More negative camber helps these pigs turn as well as they do.
Factory spec calls for negative camber and is normal as SRT intends these cars to be driven on road courses too, not just in a straight line. If you only care about straight line performance then remove the negative camber.
Negative camber was a big deal back in 2011 when Ralphy McGilles brought the Green with Envy car to Motoman for that super long video way-back-when.
He specifically mentions how they added quite a bit of negative camber for handling purposes. Don't know that I would be alarmed in the slightest by this.