I want to rebuild the carbs on my 1967 65hp merc. In looking at the location of the carbs there appears to be a lot of electrical that needs to be moved or removed in order to reach them. Is there some secret to moving wiring around in order to make access easier? Also is there any syncronizing with the ignition that will be messed up by removing the carbs? The last question is what spark plugs should I be running? Thanks for all of your help!!