[DeTomaso] Gas tank breather

[JDeRyke at aol.com]

The vent hose should, for emissions purposes run to a connection in the 
base of the air cleaner, which will help with the smell. The OEM hookup was 
from tank to a charcoal cannister, then from that to the air cleaner. The 
engine will be happy to burn the evaporative light ends which is what you're 
smelling. The Pantera tank cap was vented (and needs to be) but most cars on the 
road today use a non-vented cap, so be careful with adaptions.

The Hall plastic anti-rollover vent-valve is in fact a caged ball-check and 
was required for all cars after 1980. Wide-body Panteras got a very 
expensive assembly that could, with enough money, be bolted onto an early tank but 
will work no better than Hall's $30 assembly   Hall's is a clever adaption 
of a stock mid-'80s Ford valve to fit the Pantera gas tank. Sometimes, the 
adapter grommet or the rubber gasket dries out & cracks so fumes get out. 
Early tanks had as-stock a rivited-on steel dome with only some foam inside; do 
not expect much foam to be left 42 yrs later... Good luck- JDeryke