(ms2 v3 94 miata). just a couple question about using pin 36(ign) for tach out. First off will sending a tach out from ms to stock dash work? Secondly will do i need to do anything to the board to make it work? from what i gather it should be ready to go.

 

Unless somebody specially built your MS2 to make pin 36 for tach output, you will need to modify the board. Consult the MS2/Extra V3.0 hardware manual for details.

http://www.msextra.com/doc/pdf/MS2V30_Hardware-3.4.pdf