I have a 1970 Chevelle SS, and I am confused with the gague cluster lay out. My dash has alla the circular gauges but the three largest in the middle are (From left to right) Fuel Gauge, Speedometer, and Clock.

I have done some research and I have mainly seen (From left to right) RPM Gauge Speedmeter, and Clock.

Do I just have a different dash option? I need help. Any clarification would help.