hey all, I actually dont own a truck, but work with ford motor company, as a diesel service advisor. I work very closely with my mechanics to keep in touch with updates to pass on to customers. Any questions about 7.3's, 6.0's, or 6.4's I will gladley share my knowledge with you on the topics, if i dont hav ethe answer, i can find it out from one of my techs, the next day. my current project if anyone would care to know, is a 97 civic with a built crv engine with vtec head, looking to get into the mid 13's in a 4 door 4 cyl N/A.