[musclecar fan]

Many years ago, I used to own a real 396/375 pace car convertible. It had a very unusual tach that I have never seen since. It was a 7000 Tach with a 6000 yellow line and <span style="font-weight: bold">6500 redline</span>. Yes a <span style="font-weight: bold">6500 redline</span>, not a 6000 redline. Is this unique to certain 396/375 car's such as L89's? I have seen other 396/375 cars but they have the 6000 redline tachs like Z-28's. Any thoughts on why this Pace Car had a 6500 redline? I've been puzzled about this for years. Thanks