5.7 Hemi Conversions - XVMotors? Arrington Chip Killr? Other options?

I am running MSD's controller. Works great and is EASY to tune with a laptop. I am not a computer genius and I have no problems. Oh and by the way my stroked 5.7 makes 600 hp and pushes my 3700 pound Dart down the 1320 to low 11's. It will be 9's on the spray next season. With 2 edelbrock carbs. I believe the right look for vintage cars is carbs.