i just got this 1992 929 with the 3.0, im having a problem and i was wondering if anyone can HELP ME. for the first 5 min the car will run and drive good, you can smell it running a litle rich. after that it starts to sputter untill it reves up. now i checked the codes and i got no reading. a freind hollowed out the two forward cats and left the one in the middle, also had a tuneup done cap,rotor,plugs,wires,
and a new timming belt. oh also a new computer. so you see my delimma. if anyone can help it will be appreciated!!!!

thanks

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