Sorry, big broad question here....

I have the drive train (360.727)from my 12 second 3800 lb Dakota I could drop into the dart, just wonder what I'm getting into as far as dealing with an A-Body, not familiar with their construction...

It'll be street stip.
I know I'll need a roll bar, mini tub, built 8 3/4, it's got a 273 in it now...Any quick tips would help...I'm making my decision this afternoon.

Thanks