I installed my buddy's wideband in my car today to see what the a/f is wow is all i can say( my real reaction was holy ****!) under wot its nice and lean at a 16.9:1
so after an hour or so of tuning shes screeming to a nicer 13.1:1 plus or minus...time to hit the track again to see if i can improve upon that last run of 13.7.....