Hi everyone. I was BS-ing on another site about 409's, and learned that a 409/425 only did the quarter in 14.9 seconds at around 95 mph. I don't think I knew that. I certainly didn't believe it either, so I looked it up. Googled several sites and yup, that figure came from actual testing by Motor Trend or someone else. I did see they squeezed a 14.7 out of one trial. Have to tell you, that was very disappointing. I thought they would turn about a 14 second quarter. From what I read, the factory rated them at 425 hp, but it is believed they have even more hp then that. How could that 1/4 mile time be??? Does anyone have personal experience or figures on this issue, which might be different? I'd be talking about a little tweaking, not full out race. Something you could have gotten from the factory and worked on in your garage. I don't recall exactly the time, but a '61 with a 409/360 was also tested. I believe that was a low to mid 15's. Hmmm...…………………….Thanks, Carmine.