Hoping for some help. I have a 91 RS (305 TBI). It is running very
rough. The exhaust is black & smells like gas.
replaced the PCV valve and O2 sensor
Changed the plugs, wires, cap, rotor, air cleaner
Any Ideas on what could be wrong? I checked underneath the car and it
looks like the previous owner took the cat out. Could that be the
problem? The vacuum line that used to hook into the cat is just