1998 Stratus, 5 spd manual, has a fuel smell after running for a bit, don't see any fuel leaks, where should I look next?

Yes they can be used, but you must swap everything including the entire wiring harness.

Clogged catalytic converter

car running too lean or may have vacumm leak

Replace the catalyst convertor. When a convertor goes bad, the guts of it break apart and end up clogging the exit port. One of its functions is to remove toxins from the air. Helps the emission system to run rich or lean gas exhaust.

Have you checked for vacuum leaks at all lines and going to the MAP sensor? It also has a TPS(throttle position sensor) and CPS(crankshaft position sensor),I think.
I'm thinking vacuum leak or TPS. don-ohio

Check your fuel regulator.Pull the vacuum hose off the regulator and look for fuel inside hose.If you see fuel inside the vacuum hose replace regulator.

Becareful fire danger your leaking fuel.Do you smell it in your engine compartment,Then the line has disconnected. it can come from underneathe the vehicle or from the fuel filter.Dont attempt to fix this it will need an repair at a shop.

Pump is inside the tank. If there is a fuel leak, it needs to be repaired ASAP, you dont need a fire.

sounds like oil leaking on the exhaust, this can be engine oil or power steering fluid, have the car put up in the air and checked, this can cause a fire if not repaired.

That RPM sounds a little low, did BMW comment?