I will have to agree with NewZed. The seller has invested a bunch of $ in this car but it is still a project that will need many, many hours and days of work to complete. You will need to know what you are doing in order to make a drivable Z. After reading his post, he doesn't say much about the engine. All in all a stock, not even rebuilt l28 T engine is a big question mark. There are some nice Z cars out their for sale without all the work this one will require that you could tag and drive without the hastle.