In a 240, over 400whp is pretty gay in my opinion. Unless you’re an all out drag car or something. Or maybe a drift car… but even most drift cars have around 350whp - 400whp max. There’s no point in going any higher. It’s just for bragging rights.
“Hey look at my 501whp car”
Stuff like that doesn’t even impress me anymore, it just makes me laugh now.