What is the best way to get an overdrive auto in a 67 Barracuda?

Put a GM 200-4R 2004R, 2004R Transmissions, Performance 2004R, 2004R Monster Transmission, 200-4R Transmission Heavy Duty Performance with a Wilcap adapter plate. Wilcap Company Transmission Adapters

Didn't see the 440 part. That makes things harder I think.