I had a 93 prowler, I peiced together a clutch kit, using a black magic 56-50 deg helix, yellow spring in back, yellow green up front, and a-2 weights. The thing hit like a hammer! I could pull on 700's up to about 60mph, I know this because my buddy bought my prowler and I got my 99 zr700. We raced and she stayed with me until 60 then the laws of hp took over...I loved that machine, but I love my 700 more!