I had a bunch of stuff somewhere, but must have lost it. TM40 mikuni carbs will help throttle response. Drop at least 2 teeth off the top gear and then this is what I was able to find for clutching.
First clutch setup
Primary: 10-62 Weights, Polaris Almond black spring
Secondary: Polaris R12 helix, Polaris silver/gray spring
Second clutch setup
Primary: 10-64 Weights, EPI Red spring
Secondary: Polaris R12 helix, Polaris silver/blue spring