I dont know about the T5 I have a hard time keeping them together in my in my Fox bodies. The Packard is close to 1000 pounds heavier and the factory rated it at around 250ish foot pounds or torque. I think that would make a T5 cry. I did some digging the factory rated the HP and TQ peaks at 2000 RPM. Even with going lighter with parts and doing what I can to bump up the peak I really don't know how much more I would be able to get RPM wise out of it. I am kinda thinking a taller gearing in the transmission and rear end to keep from running out of RPMs to soon? It sounds kind of backwards but with the limited RPM band would that be a good idea?