Is that one of those cheapo tachs from ebay? I had bought one, then while it was on the way I went to the salvage yard and got a 3" autogage tach for $5 so i sold the little one to a friend. The redline on my 2.0l is about 7 1/2 k rpm. I always had my tach connected where you had yours until i replaced my coil with a normal round 12v coil.