When is it too much power for the street?

Exactly what does power have to do with it?

Let me set this: '07-'08 Ram has well over 300 horsepower. Lined up against my Hyundai with almost 200 less horse. The Ram had me off the line. It's a given. The Hemi has more torque developed down low. The DOHC V6 in my Hyundai doesn't pull hard until it hits 2500 rpm. Climbing the speed ladder the Hemi had me beat by a truck length until about 75-80 mph. By the time I hit 90, that's all she wrote. Triple digits and the truck slowly disappearing in my mirror.

Huge difference wasn't just weight (I had him) and horsepower (he had me), but when each started into the power band, how quick it went into the power band, and how long it can stay in the power band, as well as turning r's quickly.

My wife, driving the same car up against a '71 340 powered Road Runner and the results were completely different. Off the line he had her, easily. He was well into triple digits before she could get there, and all she was doing was trying to get a good look at the car. Which, I might add, she did, when he slowed down enough for her to catch up, then it a was leisurely drive.

And the 340 car is rated at, what, a hundred less horse than the Hemi Ram?

"Power" is relative to the platform and has very little bearing on the outcome.

And taking that into account it's a pretty dumb question.