I have a 1963 Herald 1200 Convertible, North American delivery. Vin: GA/120284-LCV
I want to put a pertronix electronic ignition on it, but I need to know if it's a positive or negative earth (or "ground", as they say in North America). My 1962 Herald 1200 Coupe was a negative earth, but that was a UK car, and I don't know if they'd have been different.
Any ideas from the braintrust?