Yes, it has always passed smog with this replacement, designed for Smog application Holly 4165 carby .

I too was thinking somehow I messed up the vapor canister hoses .

When you gently rev. the engine to 2,200 RPM's it begins to load up and have a miss plus eye watering fumes out the exhaust .

Question : does the canister's position matter ? .

Factory position is on it's side, I loosened the clamp and rotated it so I could read the moulded in hose nipple markings (tank, purge, bowl) .

THANK YOU for reading and considering this .

I trained for my Ca. State smog license in 1984 and don't remember all that much, big honking American V8's were never my interest .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better