i think my 94 lt1 is runing a little rich on gas,how i can fix it ?

 

Air filter dirty or if it's the cotton type, maybe over oiled? Some people think that drilling holes in their airbox let's it breath better. In that case it can get wet.

Old ignition components?

Lazy O2's?

Dirty injectors?

Need more?

 

Under what operating conditions do you think its running rich - idle, part throttle, WOT? What are the symptoms that make you feel its running rich - smell, black soot on pipes and bumper, rough idle, poor fuel mileage, etc.?

Any way to do a data log scan of the PCM? That would tell you a little bit more about what's going on.

 

have smell , and black soot on pipes and bumper,