I adjusted the timing for peak Vacuum last year and never thought to do it again. Great idea.
I run a vacuum gauge in the truck just so I get an idea of how much throttle I was using to run a certain speed.
I will try that and see how it helps.

I will report back on what i find.

Remember this truck has 270K KM (167K Miles) so I can't expect miracles.

Next week is Mopar day and it will be interesting to see if i can get this underpowered turd into the 18's...LOL