When I start my car, weather it is in the morning or just whenever, I smell gas. I notice it after I installed my header. I never changed the doughnut or the header gasket . If I changed these would the smell go away?

 

cime on guys, anything?

 

I guess you are running rich...

Do you have an exhaust leak? That might be why you smell more than usual... But my car runs very rich at idle and I still don't smell raw fuel, more like contaminants...

 

b16awarrior, when your car is cold it always runs rich. the smell is jus that. also you smell gas when cold cause the catalytic converter isnt hot enough to burn the unburned fuel away. nothing to worry about.

 

When your car is warming up the RPM's are higher. Therefore more flow thoughout the whole engine. I believe there must be an exhaust leak from old/worn header gasket. Once car is at idle the flow of gases and sh*t are non-noticeable because the smell isn't resent like when the RPM's are higher. When driving the fumes of course you couldn't smell. This is just my logic, don't know if I am right, there could be a leak elsewhere, but this is what you should check first... Good luck!