platinum plug gap on headswapped gt? and questions about copper...
getting some autolite platinum plugs today. what should me gap me now that my compression is around 10.5:1 now? would it be the same as usual or different?
also, what is the lifetime of copper plugs?
getting some autolite platinum plugs today. what should me gap me now that my compression is around 10.5:1 now? would it be the same as usual or different?
also, what is the lifetime of copper plugs?
