4mil banshee2000

I haven't done a plug chop because it doesn't have a clean rev. Im running 27.5 pilots I don't have any mikuni jets. I got a jet kit. It was a rip off but i got some pro x jets to fill in the gaps. I didn't know that it mattered. I started out with 330 pro x jets and road it around and it felt like it was bogging but i didn't know for sure. So i tried the choke trick and it made it worse. So i started going down on the jets one at a time and it got better and better but now im at 260 and It feels really close. Everytime I pull the plugs out they are shiny and wet with oil on the tips.

Hay guys I need some help I've got a 4mil banshee that I just built. Need jetting help. Its got a vitos 4mil long rod ,wiseco795 pistons .40 over MX hardcore port by HJR Noss head with 21cc stroker domes Pro circuit pipe Air box no lid k&n with pro flow plate Boyesen pro reeds stock cages +4 timing Stock carbs with TORS removed 80-90 degrees High humidity about 1300ft above sea level I talked to Kevin at HJR and he told me to start out 330 main and stock needle in 3rd clip. So I did a couple heat cycles on those jets and took it for a spin. Now ive never owned a banshee it was blown when I got it but ive road several banshees and it felt like it was rich and bogging. I started going down on the jets well now im at a 260 and its a lot better but from what ive read it sounds like my jets are really small for a 4mil. My dad has one stock stroked with a drag port and he's running 270s. What do you guys think?