I noticed that alot of people with b series engines have the grounding cable on the valve cover stud. Mine is located on the factory location near the edge where its not that sufficient on contacting metal on the head since theres the valve cover gasket. My question is does this affect the sparking in the ignition?

 

anybody have an idea?

 

my d series goes from a valve cover stud to the frame right next to it

 

No it won't. The bolt does go down to block and there are other grounds for the engine to use also.