Getting the dart ready for its first road trip?

That 3,200 at 65 is part of what's killing ya, but you probably know that already.:D

There is an easy solution to that (stock normal) getting into third by 30 if you have a TP rod instead of a cable.
It can still be done with a cable, just differently.

What you want for immediate satisfaction is for it to not shift so dog gone early without making any major internal changes at this point right?
You need to trick the trans into thinking the car is going faster than it is (has more throttle opening than it does)

This can be done by using a spring to make the TP rod stay back a little more than the throttle is.
Some do this by putting a small bolt and nut in the slide part of the TP rod, but doing it this way limits the throttle travel and the carb will no longer move to the WOT position.
What you want is something that makes the TP rod lead the throttle until it gets to wide open, but then allows the throttle to continue to wide open.
I did a web page about how to do this really easy, and I call it the 10 cent 10 min shift kit.
It works really well and is easily undone if you want to do an actual shift kit or governor change later.

www.letsgocomputers.com/shifts.htm

First road trips can be a little stressful but what I did was to basically do what I could to be ready for any possibility and throw the rest to the wind, knowing I could eventually fix anything that could possibly happen.
Once I let go of all the anticipation of possible problems it was a flippin blast.
My first long trip in my car followed a lot of Route 66 through AZ and CA and I even stopped for a little bit at the James Dean memorial where he was killed when he got into a car accident.