Originally posted by Profoxcg
Very nice body !!
I have a question,
I read that the lighter the flyweights, the later they will engage?
did I read right?
so if this true, I would want heavier flyweights (not modded sitting on the pins) so that my clutch engages at a lower RPM?
I have moded the weights, I have .5mm on the spring and .5mm of housing endplay. But my clutch slips now and then and I want to get it responsive so the car moves as soon as I touch the throttle. Should I buy a new clutch shoe? 
The engagement RPM is influenced by:
- the clutchgap (between shoe and bell) Larger gap = later engagement
- The spring stiffness (stiffer = later engagement)
- The spring preload (more preload = later engagement)
- The flyweight weight (lighter = later engagement)
- The flyweight position (on pin gives later engagement then between pis for a same weight)
If you want the clutch to engage earlier the simplest way is loosening the spring preload.
If you modded the weights so they fit between the pins you may get an inconsitent clutch. This is because the angled portion of the weights is quite small and this makes the stick a bit when they move outward (only when cut and put between the pins). I currently am experimenting with a cut clutch shoe (I cut the holes out so I have three weights). They have a larger angled part which makes the clutch more consistent.
Be aware that you will lose bottom end when the clutch engages too soon.