I saw one of these burning today in San Antonio, Texas...

[flyinlow]

There is no way I would have been able to put out my fire by spraying through the radiator. It was a pressurized fuel leak by the distributor.

Yea ,I was thinking about that problem , where is the fire?

I thought if you took some bendable cooper tubing big enough the extinguisher nozzle would fit and discreetly run it from the grill to the fuel pump/dist. area and a second tube from about where the windshield washer nozzles are (3rd gen.) to the back of the carb area.  Mount with clamps and paint them black.
Though choice, if I open the hood I can see the fire better but it might be bigger fire with more air ?