i have had both kit and the evo is better. one you cant close your hood with the QSD. there are no ground clearence issues with the evo kit. the hood will close with the under bracing cut. the QSD also but the motor closer to the fram rail on the driver side and you have to beat it in and it still touches. so you cant really run the bottom timming cover without cutting it and the balance shaft almost have to be gone. This is coming from someone who had QSD and Then went to EVO after i help but this one in with the evo kit and loved the way it worked out. spend the little extra money trust me.
pump for my boy