For reference, I am looking into these two tachometers for my 235. I'd like to get the unit most appropriate to the inline 6 application.
1. Auto Meter 2891 Z-Series Air-Core Pedestal Tach, 6k RPM, 2-5/8 Inch
2. Auto Meter 2890 Z-Series Air-Core Pedestal Tach, 4k RPM, 2-5/8 Inch
