just installed a 80cc big bore kit and want more speed

[Retro]

Hey i just a installed a 80 cc airsal big bore kit in my Baotion Retro (BT50QT-11) scooter, it has the 139 qmb engine btw.

Going up hills and acceleration has improved a lot, but i would like to make it go faster i got maybe a 10 km/h speed improvement after i installed the kit.

What should i do buy a new carb or just install new jets if so what what size would you recommend? thinking about buying some roller weights as well but not sure which ones to buy, it got 7g weights stock. i am supremely fat and weigh around 300 lbs btw. any other suggestions to make it go faster?