Is there any feedback from those with modified fuel systems? I would appreciate an update and what tweaks have been made if any. How are the TTM injectors working out? Fuel rail with crossover? Does an upgraded fuel pump need to be installed as well? What does a fuel setup like set one back?

My zt-2 came in and I need to get the exhaust bung welded up. Can anyone recommend types of places where they have had this done?