clutching recommendations?

[rmking700]

running a 12 pro 800 163 with 19/43 gears and an slp pipe all stock other than that riding 7500-11000 in elevation. has 10-60 weights now and as far as i know the rest of the clutching is stock. not pulling rpms up hill. i can hit 8050-8100 on a long straight away on trail but cant pull even close to that up hill. new to this clutching stuff but want the most performance possible from this thing any recommendations? im about 260 geared up. tia!

 

[Iowa_assault]

put 58 or 56 gram weight's in there

 

[rags319]

Need more info. Did it ever pull correct rmp. 8100 or so or did you just get the sled. What's in it for springs. Have they ever been change. Helix also. What's on it for belt. How many miles on sled belt. You should be able to pull 10-60s at 10k. Something else in wrong imo.