comp cams xe284 cam?

I would not use the obsolete non HL version
If you are not experienced I would check with Porter (comp dealer if I remember correctly) and Racer Brown
There are several vendors of quality MOPAR cams
Lunati Voodoo series,
Howard (in the catalog look for a (15) footnote, compare the (15) to one without :)
Engle has lots of experience with MOPAR
Bullet has many choices
find a grinder you can work with