i dont know what it is but ever since i put the lt's in, 24# injectors, new 80mm maf, fpr, and upper intake, it sounds like i have a blower under my hood, it sounds like its coming from under the elbow/intake, right in there, is it possible for an injector to whine???
Mine does it too. I think it would help if we got bigger TBs. I have an 80mm pro-m, and I figure how does that help so much with a stock (60mm?) throttle body.
After reading thru this, it dawned on me that mine does the whistle...I got the mini-blower though..Mines fairly mild, but I know the sound your talking about...Did it more so once I added the Cobra/Fox set-up...
its just a REALLY high pitched noise, no idea where its coming from... sprayed carb cleaner around the engine, didnt seem like any vacuum leaks, everythings connected, joe(vib) doesnt know what it is.. so i dont know...