1965-1968 911 normal and 911L cars use a 6500 rpm tachometer; US-market 1968 cars couldn't be ordered with the 7200 rpm S-spec tach because the S engine couldn't pass US emissions. RoW cars are the exception.
Tachometer red lines and US emissions: 911 / 911L vs 911S
Porsche 911 (F-series) · factory-spec