Hello Don,

Before you run out and spend a bunch of money, I would strongly suggest you be sure your carb is the problem.  It sounds like you did a lot of the rebuild work yourself...is it possible you inadvertently left off a vacuum hose?  Though not familiar with your engine, modern motors have an awful lot of tubes and hoses all over them, it would be easy to miss one. 

You said the exhaust 'stinks'...that implies to me that you might have a clogged catalytic converter, which could definitely cause a loss of power and a stinky exhaust.  Frankly, I don't even know if your rig CAME with a cat converter, but I'd sure look into that first. 

Pick up an inexpensive vacuum gauge (Pep Boys, Kragen, etc.) and be sure it comes with a good set of instructions.  A V gauge can tell you a whole lot more about an engine's operating condition than most people would even imagine, if you know how to read the thing.  (Revcons have V gauges built into the instrument cluster from the factory)

An old Indian trick is to, with the engine idling, shoot either starting fluid, WD-40, or anything flammable around all the hose fittings, carb base, manifold to head gaskets, etc....anyplace a vacuum leak could occur.  If, as you spray around, the engine suddenly speeds up (or dies!), there's your leak. 

I hope that helps a bit.  Please to keep the list informed, especially once you've found and corrected the problem, which you will in due time.

Good luck,

Mark in Modesto

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