Im still confused why people are comparing mods for a factory supercharged car vs a car that comes N/A stock. You wont get the same bang for the buck when talking small numbers. If you want to go over 5K, then its a toss up of parts that get picked for either. At that range a blower setup can be installed on the 5.0, and a upgraded blower on the termi which can sit them both in the 650+whp range.