The key to success in a car building project is access to high quality, reasonably priced parts that get the job done right. Many Allstar Performance parts are one-of-a-kind; you won't find them anywhere else!
I didn't like seeing and cleaning the dirt in the main body of my carburater using a 4" k&n with their lid. I bought this one and flow tested it, and it flows almost exactly the same as a k&n, but with a solid metal lid.