having one carb means your air and fuel is going to have to fight its way through a y and in doing that one jug may get more then the other leading to a burn down all kinds of cons the only pro i see to that set up is you only have to tune one carb
do you not have kill switches or tethers to turn off the motor or am i missing something here i'm running a 4 mil with methonal and a pvl ignition my buttons work everytime