There won't be a pedal change in the near future. I need this truck together and working for the next year.
I do also have a gm turbo setup sitting in my garage... There may be some sort of complete drivetrain build over the next couple years.
I'm really leaning towards an nv3500 because of the close ratios and having a true 5 speed. I need to really look at what they are capable of. I want to continue to be able to tow a car trailer well. Fire truck drives straight and true on the highway and can keep up with the speed limit. I definitely think it would easily cruise 75 unloaded with overdrive.