Originally Posted by JL330
Didn't know how those worked on these cars. They're a big waste of money in the mustang world.
They are and they aren't, it depends where you need the power. The Fox bodies I have had all fell on their face up top. Where, long tubes would make that drop in power less.
Shorties bring the curve to the left while, long tubes will bring it to the right. Primary size and over all design also affect how much gain is had and, how much to one side of the curve the power moves.