Buying throttle body - what all do I need?

colemanitis said:

I'll probably shop around for a nice used one to save some money. My stock TB needs to come off to fix an exhaust leak (worn out gasket), so I figured while it's off I would upgrade it. I don't want to spend too much money on the TB 'cause I need headers bad.

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What kind of Headers r u going with Bro ?

I got mine from Thunderbolt motorsports in FL. 220 from them...polished and shipped direct from accufab

ok....Its 260 from Thunderbolt...220 was just the TB..Sorry. My mistake.
I got my TB and spacer off EBAY from them. I got it for 189.00...I got lucky I guess..I alos got the Accufab AFPR. All very nice...

I went from a 65mm Accufab to a 75mm Accufab to better match my AFM powerpipe. I didn't notice any loss in torque, or power. For a 65mm the motorsport is a good choice, but the only brand I even consider besides that is Accufab. I've heard of the edelbrock/bbk whistling, losing thier screws into the motor, and sticking. I'd rather pay a few more bucks for a quality piece than deal with that. I had a minor problem with the threads being stripped on my 75mm, and accufab had another one out in a few days to me, and their customer service was excellent.

I know the FMS 65mm throttle body includes a new tps sensor and an iac valve do the other brands? Also would you see any gains on an otherwise stock engine?

The FMS is the only one that includes that. And they are not cheap either, I had to replace both on my stang, so that is a good deal.
On a stock motor it isn't worth much at all. The MAF is 58mm, so that is the restriction. Buying a 73mm C&L for $125 or a proM will definately add a few more hp. The key to all the power is replacing or porting the heads though. I wouldn't even bother with a TB or intake, unless you planned on doing something with the heads. Either that or a power adder. A buddy of mine just ran 119mph in the 1/4 with a turbo at 10psi on a stock motor with 190,000 miles on it.