Gasoline Smell....where is it coming from?...6 conversion, Update 5/18 Options

[billh1963]

When driving the car (engine is a 2.2L 6 with triple Webers) I frequently smell gas. This is with the targa on or off. The smell comes and goes...it's not consistent; however, it always occurs

If I stop the car and check around the car (with the engine running) I don't smell it. With the engine running I have checked everywhere and don't see or smell anything. No drips or puddles under the car, around the carbs, etc. I have checked connections on the fuel pump and nothing there.

I have thought of two possibilities:
1. Leaking fuel line in the tunnel (which I should smell all the time...right?)
2. Fumes coming into the cockpit from the engine compartment.

Any other thoughts?


Update: 5/3
Drove the car extensively today and, as usual, the gas smell comes and goes. Stopped while the smell was strong and checked around the carbs...dry
Looked under the car...dry
Opened the trunk...no smell.
Even pulled the gear shift to see if there was a gas smell in the tunnel...nothing

The only thing I see is this line is hanging out in space...could the smell be coming from here?
Should I cap it or does it need to connect somewhere?
Remember...this car has triple webers...it's not fuel injected.

[toolguy]

I would not drive the car until you KNOW 100% that all the fuel lines are good. . If you still have the plastic line thru the tunnel, replace it and all the flex hoses. . then look for the carbs to be leaking. . main jets or float bowl drains. . feel the bottom of the float bowls with a tissue paper while running and see if there is any liquid gas. . .
Do you smell it in the front trunk ??
Another possibility it the gasket around the top of the gas tank filler neck with the little bolts. . that is especially noticeable with full tank going around corners. . also the tank overflow drain hose should protrude out of the tank area floor and below the steering belly pan. .

[Qarl]

What type of fuel lines do you have? Gas with ethanol can corrode the regular fuel lines unless they are lined with PTFE.

Gas vapors can also permeate through the lesser quality or older rubber fuel lines.

And as others have said.

1. Gas cap seal
2. Evaporator cannister system (if in place).
3. Small leak in fuel line fitting.