1977 Chevy Nova that hasn't been started since god knows when. what do i do?

[MichaelMavretic]

I'm getting a 1977 Chevy Nova with a 350 put into it. Not the stock 305, I plan on doing work on this vehicle but I just want turn her on to hear it and identify some problems. Well should i wait and drain the gas, trany, oil and all fuilds and replace for new one before i try it. On top of that is there any parts i should try and replace that are guaranteed to be bad. Any advice helps. I think i know what to do but i want be sure