I can say I'm very well satisfied with my recent purchase of the 50mm TB. Better throttle response and a definite gain for $99+shipping.

Ebay uses 1999BLKDAKRT is the one I bought it from so I thought I'd share the info with yall.

 

I have talked with him and he is a great person to do business with. He will take your old tb as a core too, and Im gonna have 2

 

It runs alot better and compliments my CAI.

 

How does this compare to a fastman?

 

Same work, less price. I included a pic.

 

I can also vouch for this seller. I have the 50 mm tb on my 5.9 360...very good quality.

 

How about just honing out your stock throttle body? It's quick and easy, not to mention free. I've honed mine out and would be willing to bet that there wouldn't be one speck of difference show up on a flow bench between mine and one that was purchased.

 

How's this compared to the Big Gulp TB?

Been looking at both of them awhile now..

 

Big gulp is 53 mm I believe...IMO not worth the money for the extra 1 mm. Other than that, they're exactly the same.

 

I would but I don't have time to do so. I'm too busy doing the kegger mod.