Tach Issues with stock ECM

My gauges are from Speedhut. When I had mine running for testing it seemed to be working fine. I connected one wire to a coil pack and if I remember correctly I had to set the tach to .5 pulse per revolution. I never really checked it too close for accuracy but it seemed to be on target. It also has an extra wire that you can cut to increase noise immunity if the tack seems a little jumpy. I'm not sure if I will need to do this. Their website says they make the only tach that does not need any special adapters for distributorless ignition systems.

http://www.speedhut.com/custom_gauge_description-gauge_type-Tachometer-auto_number-803.htm

Installation instructions:
http://www.speedhut.com/support/ind...rticle/View/34/5/3-38-tachometer-instructions

Hopefully I'll get enough bodywork done this summer to put it back in and have it running again.

Thanks Boden, but I bought my gauges a long time ago, I have all AutoMeter Carbon Face Gauges. Any questions on the body work, just ask.