A follow up point is at 1969 Firebird Pontiac has a special ignition switch the careful with aftermarket one where when the car cranks there’s 12v to the distributor then it drops down to 9v so it doesn’t burn out the points. So the point is it has 2 power sources. Anybody needs any photos of placement and cars I found an original 1969 400 car original engine possible and 323 gear even has original battery in it it runs pretty good just had dust all over it. It’s nice to see all the original hoses decoded and harnesses in the correct spot so you can see when you’re restoring something.