Hey everyone. I'm new to the site so bear with me. I need some help with diagnosing my car. I'm getting a really strong exhaust smell inside the car lately. When you get on the gas it's worse and has a strong carbon smell. Here's the history. Bought the car and rebuilt the motor. Clevite 77 kit bored .30 over with a b cam, cobra upper and lower intake. Flow master delta 40 mufflers with tips factory h pipe hollowed out.