Quote Originally Posted by K1500ss4x4 View Post
Now how do I get my Tach in the dash to read the same as the tach in TunerPro? it's about 500 rpm to fast since i switched from v6 to v8.


The signal to tach comes from wire off coil. So now that it is running correctly I would suspect it to be correct... but maybe there is a differnce in the tach?