I read exactly what it says

And what I saw was "Hey, i'm retarded and want to swap some halfass supposedly rebuilt piece of shit tuned port engine, in place of my LT1 which still has the crosshatch on the cylinder walls, but i'm too cheap to repair the little things that are wrong with it, so instead i'll attempt some serious fail, by trying to install an engine that isnt even going to fit properly, will need a custom wiring harness, and will make even less power than i've got now"