First I replaced all the engine seals.
Mine Still has the stock mesh filter and box, though I pulled out half the screens and those lil plastic cylinders. Also installed mlm circuit pipe, one of those 3d printed sha slides, and I think I'm currently at a 66 jet.
Probably doin 30mph now with far better acceleration throughout. That carb slide maoe a huge difference in idle and low-end torque. (edited)