Looking for suggestion on what I should do before jumping back behind the wheel of my '94 Mustang. The car has sat idle for quite some time and last time I left it, it had white smoke coming out of the tail pipe. I assume the head gasket needs replacing, but my question is more general. What should I look at replacing even if it doesn’t necessarily need to be replaced, just for the fact that the car didn’t get used like it should? It’s a '94 with about 70K miles on it. Should belts get replaced, tune up, etc?