I have the z replica it's a 2003 model

I want to get the 88 cc kit but I am also having problems with dialing this carb in. and he is back firing and not running worth a puck.

now I want to readjust my valves but I can't cuz the tapet caps are too tight and the head is stripped off cuz i must have gorilla nutted them on there

so I think when payday comes around when I have extra I am gunna get the superhead kit from 2bro's

or from someone?