Distributor curve help needed

The heavy long looped spring obviously did not do what I had expected.
Yea. That's why its good to do this stuff step by step.
Its not as obvious as it first looks.

Since you changed the gold spring for the silver spring, anything was possible.
Sometimes the 'soft' spring has more tension so initially applies more force. The books and magazines never mention that.
Force = spring rate x distance stretched.