Shelby Intake

[macx]

very probably was an over-counter add-onn like any other aftermarket manifold. I remember reading a comparison quite a few years ago that included the then-available 4bbl aftermarket intakes, I think this was maybe even before the Performer line came out. Before Performer, Edelbrock still had some really good 4bbl intakes, just not a catchy name for them. Anyway, the Shelby performed quite well against the others if I recall. You'd likely gain VERY few hp by swapping, and you've got a really cool piece there! Use it and be proud!