[Synical4]

As far as your question for the ls swap you'll have to pick up the tach signal wire from the ecu/ecm & then set the tach switch for 4 cylinder. It also says that you might need to order the intellitronix LS adapter kit for series 1,2 or 3 engines the part number is 8014LS. It's says that the LS kit will help pull a stronger signal for the tach unless it says your doing a 4 cylinder then you'll have to send the gauge back & they'll program it for free for the 4 cylinder.