Running rich?

[EIB8400]

I have a 85' k5 with the original 305 and computer controlled carb (quadrajet). It smells like it is running realy rich (stinks bad). I pulled 2 random plugs and they both look like the it is deffinately not running rich. What would make the fumes horrible?

 

[British Slave]

vacuum leak.

 

[EIB8400]

Any particular place I should check?

 

[British Slave]

All over. It could be under the dash, on the engine, on the firewall, it could be on the egr solenoid,. What I found to help, is isolate the vacuum lines at the source till you find which one is leaking. Then work your way out. Check the manifold.

 

[zombie1969]

You already pulled two plugs so pull the remaining and check them all out.The plugs are a very good way to check how lean or rich its running.Who knows you might find one oil fouled and not giving a good burn so your smelling it.While the plugs are out do a compression test.