Air chevy
1. A mount to hold it steady. There is significant torque, it need so be very stable.
2. Battery with cable to the starter and ground to engine block
3. Wire from battery to the coil
4. Radiator and hoses with 1/2 antifreeze and 1/2 water.
5. Exhaust pipe and muffler
6. Fuel source. I used a funnel on an stand connected to the fuel line.
I started mine many times mounted on the frame with just the basics. To stop it just disconnect the wire to the coil.
Good luck
Rich