it didnt burst ,he had a 99 or 2000 model and i have been clocked enough by the local authorities to know that my speedo is not malfunctioning on my truck[img]i/expressions/face-icon-small-tongue.gif[/img]

 

I agree with slomoe the 400ex has tones of more power through its low and mid range i did not feel any power in the z until i was at the high rpms so i agree it seems like the z is a little quiker just because of the high RPM's but it had no low and middle end power at all would take a lot of work just to get the low and mid power the 400ex has. Which as the 400ex all ya have to do is get a rev box which will make it faster then the Z and give it a lot more high end torque and power and increased its top speed.