Autometer # of cyl adj switch

[FastRegalWE2]

Cant seem to remember where the switch is to set the # of cylinders. My tach is off 200 rpm down low but multiplies as RPM goes up, 4900 is actually 6900 rpm. I think the thing is set on the wrong num of cyl. Where the heck is that thing. Its a Sport Comp with shift light
TIA

 

[pontiac6269]

If it's the same as the Autometer Autoguage line of tachs, you have to remove the screw from the back cover and the switches are inside.

 

[GNut]

Go to www.autometer.com They have the spec sheet available for online viewing.