so my dad and i put a vortech bov on my ss with a powerdyne blower and made aluminum tubes for it to work. but my check engine light is still on and i have no idea y. also when you run it hard it rattles the valves a little. so we scanned it and it said mass air flow sensor out of range so we tried a new sensor but that didnt make a difference, so im lost. any help is appreciated. thanks