First off hi my name is Kenny I’m new to this forum... was wondering if u could help I want to get my head port and polished and need to know by doing so if I have to upgrade my carb?my mods are as follows piston bored .40 over full fmf fatty 2 exhaust moto vforce 4 reads no air box lid and yes it’s jetted for the open box and the exhaust I was going to do a tors delete kit on it because the person that owned it b4 me half ass deleted it and as a result I have no idle so please help and thank u in advance....