Is Anyone Running A Stack Racing Tb?

Has anyone had any experience with an SR (Stack Racing) throttle body from American Muscle? Not sure who makes them, but I was thinking of replacing my BBK with one.

They are on sale right now.
http://www.americanmuscle.com/sr-75mm-tb-8693.html
http://www.americanmuscle.com/sr-75mm-tb-8693.html

You are probably right.

I have been trying to find the cause of my crappy running condition after TFS top end kit. After paying 2 shops to not be able to find the issue, I'm just trying to fix things that I know are wrong.

The BBK whistles a lot, and the IAC ports don't even come close to matching up. I did find on the site yesterday that they are aware of the issue and I can send it back to them and have them check it out, so I am going to do that first.