Hey I was wondering if anyone had an idea whats wrong with my motor. It's always burned some anti-freeze but just today i started it up after work and it ran real rough. It felt as if I lost a cylinder. I got a good feeling that its a head gasket but not sure. I've checked all the plugs there good. When i open the hood after it runs a little bit you can smell burnt coolant. It's a TBI 350 out of an 90 suburban.