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

indy cylinder head now has a mod man intake system for the 5.7/6.1 it has an interchangable top,,single 4 dual 4 or 6 pac, dont rememebr if it is single or dual plane,,was less the 500 when i last talked to them,,,