Exhaust fumes

[fetcher]

I figure you would be able to see, hear, or feel an exhaust leak, so I would tighten up the intake air path. If that did not work, I would then check
fuel pressure. Maybe Fix Kick would know the color code for the injector. Once I put in new injectors on a Ford truck and got instant super rich.
When I finally convinced the seller he sent the wrong ones, the replacements worked perfectly.