For Sale:
Lightly used ATM 3990 tachometer. I used this in my car for a short period of time(6 months), and then picked up a factory 911 tach and replaced it.
This is an excellent upgrade over the stock bouncy tach, and will work with any variation of cylinders, or ignition systems. It is extremely smooth, and doesn't look horribly out of place with the black face, white numbers, and orange needle.
This tach fits right into the factory hole, and has proper studs and mounting tab, unlike the pedestal mount most people purchase and wedge into the factory hole.
While I did use this in a -6, the new autometers are switchable from 4, 6, or 8 cylinders instead of how you had to cut specific wires previously, and then you were stuck.
These are $180 new from summitracing.com. I figure $130 plus shipping is a fair price for an essentially new tachometer.