Factory tach dash with Cummins pickup

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Ensign10

Junior Member
Joined
Jun 19, 2015
Posts
17
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14
Location
Oregon
First Name
Jacob
Truck Year
1987
Truck Model
K30
Engine Size
5.9
Picked up a 1986 K30 Silverado crew cab with a 12V VE pump Cummins for a song. The PO did a pretty decent job getting everything hooked up. A/C blows cold, all power windows work, and the motor has the factory tach pickup on the harmonic balancer. I have a factory v8 tach dash that I'd like to put in, but I don't know if there's a way to make the tach read right. It has a single point pickup, so one trigger per revolution.
Much thanks

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