My son installed the 360 he built 2 years ago and installed it in his street legal Duster and had no idea how fast it would go so he disconnected the back barrels on his 750 carb and wire tied them shut. He took it testing and at the end of the day they gave him permission to make one pass with the four barrel hooked up. It ran a 10.60 on that pass and then quickly wired it closed again and added 300 pounds to the car. It is now legal as he added a roll bar and is happily in the 10.50's