Good call. Thank you!It may not be where you want the redline but mikes montes has them cheaper than dixie. I'm assuming yours is this style?
http://www.mikesmontes.com/New-81-85-tach-8K-RPM_p_803.html
I bought this one when I went sweep to round gauges
http://www.mikesmontes.com/8-Grand-Tachometer-for-1986-88_p_734.html