Could someone tell me what terminals to use on the dakota digital speedo unit for an LS1 to a 99 cluster? Instructions are here http://www.dakotadigital.com/pdf/sgi-5c.pdf but I am not sure what option to use.

 

I set mine up based on application 3 in the instructions. Used the out4 for the speedo (I think - traveling this week, can't look at it). I have not had a chance to tweak it, but it did work during my 1/2 mile drive. I believe the speedo is expecting 4000 ppm.