Engine specs on a 2001 360 R/T
In order to use the 2000 5.9 in my old ride, ('79 Magnum) I used stock style engine mounts, a passenger car oil pan and used a Edelbrock in line fuel pump for carbs. But the kind of fuel pump you use, manufacturer, is your choice as long as it is for a carb application.
Connecting the engine to the converter was a B&M flex plate designed just for this exact Magnum balanced engine to a neutral balanced converter for the 904.
You should have no problem getting this plate.
However, somewhere along the line, I was told that the flex plate on the Magnum is set up for a neutral balanced converter. So a plate purchase from B&M is not needed, IF this is true. Check around with members here. MagnumMopar I thinkis the screen name you need to contact.
Compression ratio should be 9.0-1. But I have not put a mic to it.
I have an Alt. issue that I have not yet addressed.