Peugeot SpeedFight 2 roller weights [Really need help]

Hi guys, i have speedfight with a malossi multivar and a doppler sports pipe. The problem is that it really sucks at speed. What kind of roller weights i should fit to it ? Thanks in advance for your answers.

 

8.5g if you use the std torque spring.

 

You could go lower, but watch the revs. My TKR2 (as pictured) had 5.8 gram rollers in for a week or two and it took off like stink but revved it's balls off and struggled to change to high ratio at the back end. I'd say 8 to 8.5 grams should make quite a difference.