Ok guys, The K9 is an excellent engine teamed up with the 2045 pipe and 192 header......ran it for the first time today in a race situation and had no tuning issues at all and had really decent power considering that it only had about 8 tanks through it before I started the day...so it is still in the running it slightly rich stgae....next weekend I will get to lean it out a little more and realy start to see the power come in