The 1227730 chip can be programmed to work with a 8000 pulses per mile (8K) VSS. Some Dakota Digital electrical speedometers use an 8K VSS. Two 8K outputs from one VSS should work. Digital Dakota offers a Universal Speedometer Signal Interface that will convert an 8K VSS to 4K for a stock programmed 1227730 chip: http://www.dakotadigital.com/index.c...rod/prd126.htm & http://www.dakotadigital.com/pdf/SGI-5e.pdf

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