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.

[larryM]

X2 on Jeff's comments - but you never told us if you are running a return line & old style 3-pipe pump -

if you have return fuel circulating it makes a LOT of vapor - cut off & plug the return line (at the tank) if you have one - it is totally useless on a carburetted car

- throw away or sell the oem pump & install a Facet - $40

be sure you have an open vent at the filler neck so the atmospheric psi can get back into the tank as you "suck" out fuel (that tiny pipe) - vent it overboard outside the trunk

throw away that canister

buy a new gas cap with decent seals - abt $35 from a 356 supplier

if still a problem, run a vacuum line from the big neck pipe to the intake manifold & suck out the fumes (that was the whole purpose of your canister & its lines) - your oem 4 had a suction line thru the body for that - hope you did not cut it off

.