[SSMOKEM]

For a street running Chevy 350, 600hp crank HP is EXTREMELY unlikely without a power adder. For one thing, it would probably idle 1500+, for another I'm sure it would overheat at idle. Making that kind of NA power through street mufflers is also a very iffy proposition.

Making the power is not that hard, making it streetable is very difficult. So the answer is yes, it's possible, but the probablity of it actually happening on the street in a NA car is slim to none.