What is the best......
For example, an ATI D1SC can be fairly quiet on certain cars, but every now and then you come across a real loud one and you'd think it had an F1 under the hood.
As for the "best blower" for the LS1, well that has been debated to exhaustion to no avail. Just do some research on the forum and find what sounds best for what you are trying to accomplish.

