A guy I work with wants to buy my 97 Chevy

He came by the house today and took it for a drive and took it to his mechanic to look at it. He told me his mechanic said it needs an intake manifold based on the milage.

1 of 2 things is happening here. His mechanic is ripping him off because he doesn’t know about cars or he is trying to get me to come down on the price and doesn’t know enough about cars to say things that make sense.

What say you Oppo?