Progress report...

65TerrorCuda said
Hughes made me one of those bastard converters for my early 273 and later 904, it works great and was not expensive(<$200)- just in case you have to source another one. Great thread!!

Same, my local convertor shop did me one for my '69 225 to '64 trans.
'late case w/early inerds'
They even high stall'd it for the low price of $170

dalenzie convertors

http://dalenzie.com/