I have a 1991 Mitsubishi Mighty Max 4x4, 3.0L with 5 speed. I'm not sure of specific engine(if it matters) as I only have the drivetrain to the vehicle as another vehicle body is sitting on top of it. If someone will tell me where to look on the engine I will look. I am curious as to upgrading the engine such as is it possible that the Mitsubishi 3000GT 3.0L twin turbo would bolt up to the transmission? I do not know a lot about Mitsubishi compatibility.
Or if thats not possible what upgrades are available for this engine such as camshaft, headers or anything like that?

Thanks for any help.