Hi,I bought myself A 1989 banshee and I dont know alot about it thats what brings me here.The way I got it was with A fresh rebuild .30 over,FMF fattys,boost bottle,K@N,and boysin reeds.I have A problem with it bogging on take off then backfiring.But if I keep the bitch sceaming thu all the gears it wont.I took the carbs off and cleaned them good,checked all the rubber boots and intakes for leaks and their fine.I have stock carbs with 230 mains,im not sure what size the other ones are.I checked the plugs and their both dark.Im lookin for some good tips,it will be well apreciated thanks