Can a DIYPNP tach output be used to correct the Dash tach?
 

The tach in my '90 cluster is way off at the upper range of the RPM band. When I hit my rev limiter set to 7,100 in the DIYPNP, the factory tach is reading almost 8k. Can I use the Tach output from the DIYPNP and some kind of offset to correct it?

The tach output can be set to half speed but not other fractions.

Thanks for the reply. I saw in the Tach Output settings the half speed, but I was not sure if there was another way to give the output any kind of offest.