Is your Fiero tachometer reading high or not functioning at all?  Swapped your 4 cylinder engine for a V6 or even V8?  Here is your solution.

New adjustable Fiero tachometer board.  You can adjust the range to match your existing tachometer movement.  

Note - You need to adjust this board before using it.  That means you will need to be able to read your RPM via an external method such as scanning the ECM or using an external tach.

NOTE - THIS IS FOR THE PCB BOARD ONLY!  The Fiero tachometers shown are only for reference.

Note - Fits all 85-88 tachometers.  Fits 84 tachometers that DO NOT have a voltmeter below the tach.