rb20det swapped s13 w/ sohc digital cluster tach fix?

[Jcoleman134]

I have a s13 sohc digital cluster in my vert and would like to get the tach reading correctly. It's rb20det swapped and only thing I've seen is getting a Dakota digital converter. Are there any other ways?

[supersayianjim]

ive been driving around forever without a tach. blackbox tuning carl hernandez can modify it if you send him the cluster..