So I'm hoping to start a new engine build, a ~400HP engine plus 100HP shot, for my truck in two weeks but since it's for my tbi 350 daily driver and I'm planning on running a mpfi tune on it I want to test it out outside of the vehicle first so the weekend I take it to get it dropped I can get it up and running ready to tune that same weekend. I'm planning on putting the engine on a stand with a 4L80e bolted on to it and a spare ecm and just do a short simple wiring harness to all the sensors and what not so I can at least tune the near idle ve table and to check that the repining of the ecm to a 4L80e works shifting it.
So besides a battery, a small fuel cell with a fuel pump, plumbing for the fuel, is there anything else I should plan for?