Agreed. Also, good information on exhaust sizes, my entire exhaust was rusted, and my engine hadnt run in 7 years, but I finally got the fuel pump replaced, and took the entire exhaust from the flex pipe to the muffler off. Broke bolts all over due to the severity of the rust. I'm going to cut the flex loose and cat, check inside the cat to make sure its not collapsed or anything and then I'm going to reassemble an exhaust with the flex and cat and just port it out the back so I can finish all the other work then I'll put a muffler on it. I'm going to pop a post up about the engine though, I'm having some probs and I think someone might be able to answer...
stalling out 
it's broke, help...