Behind the tail light on the driver's side.
That's on a '56. The center section of the the tailfin chrome on the driver's side swings out and the gas cap is there on a '57.
Pull the tank. It is easy enough.
put some more gas in her!!
Practical answer is no
Within 2 feet of where you put the gas in.
Thru the fuel-filler nozzle...
Regular unleaded
FORD
Put gas in the tank and try again.
Out of gas?
as many gallons as you put in it
Yes you can and you will feel the difference in power .
I was able to put 23.32 gallons in my 1994 Chevy Astro EXT AWD.