He said he went from a 28 to a 26 inch tire and the times stayed the sameMan, some people in here are really trying to dig deep into the science of things to understand why the Boss intake performed worse than the stock intake.
It's not tuning, it's gears. He only has 3.15 stock gearing with tires that are too tall (read, not 26"). Boss intake doesn't perform well unless the car revs fast, keeping the car high in the RPM band, and 3.15 gears take forever to wind out.