my truck stock is like a gasser on take off. no lag at all, my 6.0 even with SCT was like watching paint dry waiting for the turbo to spool. my stock 6.4 is like my 6.0 on a 40 hp tow tune i love it. but i am too going to get spartanized once i get some mile on it.thanks that's all I need to hear, I can't stand a stock truck anymore! I said that when I bought this truck I was going to keep stock, yeah right, after driving a chipped 6.0 for years it just aint the same. These trucks need a little pep to them, the low end take off sucks it doesn't feel like it's going to ever start moving.
Trust me, your tranny will be able to handle the 250 tune no problem. My stock one held up very well for almost 50,000 miles with the 275 and 310 tunes, and I am not easy on my truck at all.08stroker250, thanks for all the help on the few threads that I have started, I'm pretty well straight on everything as of now, I'm currently running the 210, but I can't get the 250 out of my system for some reason I want to try it again, but like the other thread I stated I hate to put the truck through the WOT trans pulls, but I guess it will be alright, seems like people put their trucks through more than that all the time. The Spartan tuner is a total transformation to these stopped up restricted trucks, they definetly need it. Thanks for all the support on this, that's why I came here for all the good info, this site answers alot of questions.