I need help with my jetting

[SickSheeCam]

Hey guys, I've got an '05 banshee that I've had for about a year and 5 months of that it was in the shop. After I blew it up it got a stock rebuild with Athena heads. I've got 34 mm mikuni carbs FMF pipes vforce 4 reeds, I've got the stock air box with lid with vent holes in the lid and The box. I'm about 5 to 10 ft above sea level in Florida where it is about 90 to 100° everyday. With about 100% humidity. Right now I've got 27.5 pilot jets and 340 mains as this is what someone around me suggested would be a good setup. But it's just not working. when I hit the throttle she just bogs out if I'm below half throttle. She'll rip but when I get into it she dies. And also I just repacked my pipes if that matters. But please guys give me some help. I've been fighting with this thing for months trying to figure out and learn about it

[JerzOutlaw350]

 Even though this is for link is for Keihin carburetors this will explain and help you properly jet your carburetors. When it comes to jetting your carburetors it takes a lot time and plenty of patiences to get them properly tuned. 
 

https://static1.squarespace.com/static/5be4d5b35ffd2095efa9bdff/t/5bf1a09b6d2a7391b5a84730/1542561947962/KeihinCarbJetting-2015.pdf