Going from Tuner head to Domestic!!

Alright well tomorrow I am going to buy my first domestic car from being a tuner head for years. My brother in law talked me into it. I am going and buying a mint 86 monte carlso base series for $300 , it has a cracked radiator. I already have a 350 chevy small block worked going into it soon as I get everything else it needs. What else would I need for that engine to work? Thanks for any input, I am very excited to have a rear wheel drive car for the first time in my life haha.