A gt40 that is Extruded and honed would be a monster and a tough cookie to beat. It seems it would be the best all around street car intake for the price.
There must have been a million intake shootouts over the years. I've had the Gt40 tubular, Edelbrock rpm (not to be confused with the performer), and rpmII. I think they all have their ups and downs. The rpm was probably the best middle ground on a 302.
Sorry I sold the gt40 tubular. Not that I have anything to use it on, but it just looked the kinda good that you can admire on a shelf in the garage, and if I built another 302 for some reason (can't be used on my 5.0 explorer, the SC replaces the intake), I think even at risk of losing peak power i'd use a tubular gt40.