I have a JP Black C12 engine. I am just wondering what sort of needle settings (ballpark) other people are running. I also have a Novarossi CX12 and the needle settings are totally different to the JP C12 settings. I am running 2 3/4 out on the high end and 3 3/4 in from flush on low end on the JP. These settings seem to be wierd to me but they seem to work. Any thoughts?