Received my FAST throttle body. First thing when opening the shipping box I pulled out a case. My first thought was they shipped the wrong product. But then I realized the TB was shipped in this case. The other obvious thing when opening the case was the quality of this TB. I was so much superior to the Holley TB. This thing was obviously built with quality. After looking it over, I was pretty confident tis was would not give me the same problems. The IAS port was much much bigger. Installed it and started up the Tahoe and no whistle or unwanted noise whatsoever. I do have one problem, not unexpected, is how to mount it to my cold air intake system. It is 92mm vice the 90mm and that causes me some fitment issues that I will overcome.
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