HI Bruce and Ken!
Here I post a pic where you can see different valves.
A is a Holley valve, but where gasket is installed is quite different.
B is other valve that I bought the seller told me is 65, not written (?)
C is from Holley carburetor I bought in USA (S) I have two the other is (8) not in pics, same like C valve.
Ken I am going to buy a 5.5 valve as you say. You know I have installed a Holley 2100 and I prefer install 91-99 carb that is disassembled now. This carb is nearer to Model 59, at least I read. Reading over there about carb there are some technical information that i do not know. For example, Holley 2100, 1934 to 1953 (Is this generic)
Sorry but am confused,
Thanks for reading and help.
Harylufa