Stupidest thing you've ever heard about car performance

Had a kid in an lt1 camaro tell me that he was going to replace everything in his motor and that with All brand new parts (still stock just new) it should make 500 wheel....
I'm still confused at how he came to this conclusion.
Of course his friend who went to UTI built a 650hp lt1 for $1000, but he wasn't allowed to keep it.
 
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