Has anyone tried one of these? Saw it on Ebay for $50 w/free shipping.

http://www.vararam.com/tbs1.html

Use to run carb spacers on the older muscle cars, but never tried it on the newer TBs.

I think that it was in a GM High-Tech Performance Magazine article that indicated that this item helped the performance of a Corvette. The article was sort of about ram air setups (i.e., OTRCAI). While not having any experience with this, I have seen some posts that indicated that the spacer really was not worth the money. If you try one out, please let us know your results.

-K

i have one and havent had the time to put it in. for 50 bucks if it gives out 5hp it's ok.

well, i put it in today. not much of a differance

TB spacers really are only effective on old style TB injected engines...I know this for a fact. I can't see how it would make much of a difference at all on a LS style manifold.