I have the same setup as you describe. first make sure to remove the screens on the ls1 sensor. it will run horribly rich with it in place. set up the dipsticks as in the instructions. Steve Y told me to try it on 2% lean for the idle. you'll love this setup trust me. you may have to take some numbers out the offset or it may be rich. i'll look at my translator later this weekend to see where everything is set. i havnt changed it in a long time so i may have forgot.