Hello fellow Go Tech lovers... I finished break-in on my motor today, and all I have to say is that this is this fastest motor I have ever seen and is easily twice as fast as my mach 427... seriously! This motors power band is incredibly smooth and the pipe I am using works really well with this motor! I use the Dynamite 053 and I know Go Tech recomends the 086, but trust me the 053 does just fine! This thing is so fast when my car goes by its just a blur! I can't wait to take er out to the track!!! Thank you Go-Tech for makin such kick arse motors!