You don't need one.I have never ran one on my car.But if you run alcohol they make it nice for keeping your oil from getting milky.They do help power sometimes not always and you will have atleast a $1,000 bucks plus alot less room.

3120lb, small block, 10.5" tire, NA, through exhaust, full int, WITH 83/4 REAR, 9.0 at 150mph