This is a brand new, made in America, direct-fit replacement circuit board for your 78-81 Camaro tachometer. 
 
    We spent many hours designing and testing these circuit boards and use only American made, high quality components. This new circuit board is a direct replacement for the old circuit board that often fails completely or becomes inaccurate. This tach board comes pre-calibrated, but includes fine adjustment ability if needed. Just remove your old tachometer, bolt on the new circuit board and re-install your tach. No spacers needed like on other replacements. The circuit board is labeled so it cannot be installed backwards. 
 
New Mounting Bolts Included! 
 
All circuit boards are calibrated for a 8 Cylinder unless otherwise requested. 
 
Pictures of tachometers are for reference only. 
 
LIFETIME WARRANTY !!!