Sorry- but there is no direct correlation of horsepower to speed. A large bulldozer may have a 1,000 horsepower engine, but only move at a top speed of 10 mph. A drag racer with a 1,000 horsepower engine may move at 300 mph. It comes back to the gearing, torque of the engine, weight and streamlining of the vehicle. A 500 HP sports car might have a top speed of 160 mph.
400-500 hp
About 500-600mph
I reckon about £400-£500 if in decent condition
I was offered $400 for my 79 Chrysler 6 hp. Only paid $500 for it 20 years ago.
400/500 = 400 ÷ 500 = 0.8
500
Most passenger jets fly at a speed of 400-500 knots.
The hundreds, on either side of 449 are 400 and 500. 449 is 49 away from 400, and 51 away from 500. So the nearest hundred is 400.
It's a 426 with a 400 hp supercharger and a 727 transmission,
400
It is closer to 500.
400 + 500 = 900