So I have a bbk and it says on the piston 73.0250 Should I change stock carb and if so what should I change it to and what other things do I need to change. I already have a dg fatty pipe and a fmf silencer and torrs delete and I premix 32:1 please help me get this thing running again because with the stock carb it will not stay running unless I have the choke on and even then it Boggs out.