Every dodge 94-01 will have a holley thottle body from the factory. Sad part is theres nothing special about them. There is a couple people that make aftermarket TB's and fastman is probrably the most common.

Talthyren you need to look closer at your throttle body or even look at it and you will see that its a holley tb

 

Originally Posted by talthyren
They do not come stock with Hollys, yours has been modified.

 

http://www.thefastman.com/Throttlebodies5x.asp

I saw most of the improvement on the highway, a little more power at higher speeds. As Dan (the Fastman) states on his page there, 50mm for 5.2L V8s, 52mm for 5.9L V8s. If you plan on building the engine up more later with other parts and a programmer, 52mm would be my recommendation.

 

both the tb's i have are holley one off my 5.9 another off a 5.2 that i scored for 50$ along with the rest of the intake system.

 

Holley made the stock TBs. Unfortunately, it doesn't mean anything special. I got excited when I saw it on mine to, about a month after I first bought the truck. After some research, I figured out the same thing you are now... its factory.