I installed a crane cam xr3000 on my 280 and now my tach doesnt work rite. its doesnt read untill i get it up to high rpms... How do i make the tach work on the system?

anybody? i need to fix my tach. other wise ima get some auto meter tachs

I'm not sure about Crane, but when I installed a MSD system I had to buy an adapter for the tach to work right.

Maybe you need to contact Crane to find if something like that is needed for your application.