89 towing tune

[Rheatherly]

Right now I use the canned tune on my gryphon for towing a 7000lbs TT. Truck is a 4.6L 4x4 with a 3.73 gear, pulls that load good but I am wondering what kind of difference a custom tune would make.

[Longshot270]

The difference will not be huge like the one from stock to canned but should be noticeable. Mostly it will be tweaked for your elevation, driving preferences and such that the canned tune does not address.