Shorthair, Just my opinion, but don't let anyone talk you into too much compression, and keep your max torque down low. I have been down this road before and I feel as though as soon as someone is trying to sell me a lot of upgrades they are probably thinking about themselves more than what my needs are. Also, I don't know if it would cause any other issues, but if you decrease the front drive belt pulley 1 tooth ( I did this on my 95 Heritage which has a S&S 107 and a six speed) you might be happy with everything else the way it is and not have to spend as much money. I did this on my 95 Heritage(really like comparaing apples and oranges to a SE Ultra) but the sprocket change put me in a sweet spot in overdrive at about 72 MPH plus it is quicker off the line. The Baker website has an RPM calculator which can help you out a lot with any gearing changes (you will need your rear tire diameter which you can get from the Dunlop web site). Just for the record I have an 09 SEUC with the Fulsac stage one set up, and non cat header. I am completely satisfied with it and nothing else is going to get changed unless it breaks. Good Luck CAHDBIKER