black mamba wrote:
It is pressurized. You can see in the first shot what appears to be a hand operated pump and a pressure gauge sitting on top of the tank. I assume that during pit stops a pit crew member would make sure adequate pressure was being maintained.
Tom, it's rather difficult to determine from these photos whether the race car accommodated a ride-along mechanic as was common during that time period. One of the mechanic's duties would be to use the visible handpump to keep the fuel system pressurized and the motor fed.