I don't get it. OK, you can get an LS aftermarket block that can support up to 2,500hp.
But that much power is ludicrous in a Fiero. (And awfully expensive, by the way.)
Once you get into the 500hp range the car has such a high power to weight ratio that it can become difficult to drive.
You have to be real careful how hard you lean on the gas pedal, lest you loose traction and then bad things start to happen.
Plus that much horsepower can be hard on the car's running gear, and of course, tires.
From my perspective an LS3 engine with 430-480hp is fast enough for me.
Although Troyboy's Fiero with a 505hp LS7, or a 665hp LS9 is a plausible option.
Just because you can
put a monster motor in a car doesn't mean that you should
put a monster motor in a car.
On the other hand, most folks believe that "Bigger is Better". And it doesn't hurt to dream.
And of course, I have my opinion, and you have yours. We don't have to agree, and that's OK. You see things your way, and I see thing my way. We are both entitled to our opinions.
~ Bob ~
"Its nice to be important.
Its more important to be nice."