* Power: The horsepower and torque varied slightly depending on the exact engine and carburetor configuration, but generally, the 318 V8 produced around 140-150 horsepower, while the 360 V8 delivered closer to 180-200 horsepower.
* Maximum Speed: Top speed wasn't officially published by Chrysler and varied based on several factors (road conditions, driver, vehicle load). However, a reasonable estimate for the 1978 New Yorker, given its weight, engine options, and era-typical performance would be in the range of 90-100 mph. This is an approximation; achieving higher speeds would have been difficult and likely unsafe due to the car's design and age.
It's important to note that these are estimates, and actual performance would vary.