how fast are 289's

[6T9PONY]

The HiPo 289 was rated at 271 GROSS HP--NOT NET HP! Rev stated this, but I don't think you caught it tinner. That 271 GROSS HP is actually somewhat comparable to your NET HP numbers. That's why your times are fairly similar. So the cars back then weren't "slower" than they are now. Horsepower is horsepower, and that hasn't changed a bit.

One thing that has changed is the way these cars put it to the ground. One reason why a 428 CJ/4-spd could only get mid 13s was because they used the skinny bias ply tires, Rev stated this also. The vintage suspensions are also inferior to the performance suspensions of todays sports cars.