If the system voltage drops enough when it is cranking, the spark will be weak. I would try powering the coil separately from say a battery charger and see if you get different results. If it starts for you then you have to look at why the voltage is low.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!