409 - 340 HP Carburetor

snoopybob

Member
We all know the 340 hp. 409 came with a BIG Rochester 4GC. Does anyone know about any that had the large fuel inlet that contained the "rock" filter ? All that I have seen had the "small" inlet that only had a screen, but I came across one with the "big" inlet , and I don't know if someone switched tops, or if maybe the 1965 version was different (large inlet), like the 65 Olds muscle car 4GC. Any input appreciated. Thanks
 
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