bring jumper cables and some tools. pull the plugs out, then do a compression test on the cylinders.

use the jumper cables to jump the starter, ground the black cable any where on the engine, then touch the red one to the power post of the starter. the engine will turn over.

pull a valve cover too to see how the rockers look. as well as check the oil on the dip stick, tranny too. you would like to see clean un burnt fluid. and clean golden looking rockers, the comp test you want to see like 170 in all cylinders.