Intake?

[TF]

I was thinking about having some kind of intake system installed somewhere down the road, either Air Raid or K&N. Anyone who has an intake system, how has it affected performance? Any noticeable differences at all? Thanks in advance. ------------------ 1990 F-150 4x4 XLT Lariat, 302 V8 4.10 gears w. rear limited slip Gibson shorty headers 40 Series Flowmaster exhaust w. dual 3" chrome tips K&N air filter Delta diamond plated toolbox w. bed liner and a grey Ford trailer hitch cover Great Alpine cd player Modest amp and tweeters 15x8" custom rims 31x10.50" p.o.s. a/t tires Future mods. include a 1.5" front susp. lift, 32x11.50" muds, a superchip, possilby an intake system, new speakers and amp, and a paint job!