Wards Sea King 6 year and fuel mixture?

[Todd T.]

I just bought a Wards Sea King 6.
The model is a VWB19074A, serial # 66X 12034.

From what I can gather, this was made by Chrysler(VWB) and is a year 1966 (66X) Correct????
ALSO,
What is the correct fuel/oil mixture??? 50:1 or 24:1 or 16:1 ??

Thanks,
Todd