[camarojoe]

I personally always wondered why the early cars had 140 speedometers, yet there were no in-dash tachs until the May built cars...I always figured it was probably a factor of Yenko being "cheap" and assuming he could install SW units cheaper than GM would sell him a factory in-dash tach, but doesn't explain why there was ever such an item as a speedometer that read to 140mph... Even more odd is the fact that the 68 L78 COPOs had these 140 mph units too.