question

I have a question, I had a magnaflow X pipe and magna catback system put on my cobra back around X-mass time and I have already taken out both cats on them. I had the cats replaced and Ford said it was the MAS that was bad so I did get a new factory one installed. Since then I have not taken any cats out but there it still black stuff like soot inside the exhaust tube. I have never had this happen untill I got a BBK cold air intake system and the magnaflow exhaust system put on. Could it still be a MAS problem? When I start the car you can really smell the gas from the exhaust. What could be the problem with this? it is pitch black in the tubes and if you stick a rag in there u can wipe out black soot. Could it be the MAS again? or the BBK cold air intake? these are the ONLY 2 mods I have done to my 1998 chrome yellow cobra. Anyone have this problem with there exhaust? and if so How could you fix this? there is no moded cpu in the car also. Pls let me know. Now in another fourm someone said my car is dieing but I dont see how just changing those 2 things would kill a motor. The motor has only 66k on it.

Jay
1998 chrome yellow cobra

the cats are still on there I had them replaced because I CO u have emission tests, but these cats have not burned up yet. The old cats that were brand new from magnaflow only lasted a month then I burned them up and when they replaced it the brick that is in the cat was 1/2 gone. But after the new MAS I have not burned up any cats and I still smell the fuel mostly right after I start the car put it in reverse and go u can smell it a bit.

I dont think it has alot of deposits in the motor, but I am not sure, it might be running to rich, would be my guess but how do you solve that problem if it is running to rich?????