They had a single Solex carburetor and my guess is it had air filter like this one. To clean it you soaked it in a safe cleaner like mineral spirits.

 

Maybe Grant will help with an answer. Help Grant…..

 

When I submitted 1964 Sunbeam air filter into eBay, this is what came up.

1964 Sunbeam Super Mind Air Filter.

 

That is a Zenith Air Filter. You took them off and burned them to clean them. Later they were replaced by SU's. You would remove them and use a 4 ball vacuum gauge to tune them.

 

I liked my answer better and I bet it would work just as good if not better; that's crazy.

 

What did the designation GTO stand for on the Pontiac. Answer: Gran Turisimo Omalagato (Italian) I owned a 66.

 

A name stolen from Ferrari. Specifically the Ferrari 250 GTO (which Ferrari said stood for Gran Turismo Omologato, Italian for "Grand Touring Homologated." But the Pontiac was a better performer, at least according to Car and Driver..

https://www.caranddriver.com/reviews...d-test-review/

 

That was a ‘ringer’ from Pontiac.

 

There was a GT250 down here at the Ferrari dealer. It had a sticker price of $32M. Pretty green color

 

A green 250GT SWB!!! Like British Racing Green? I think that Enzo is flipping over in his grave.