Overdrive Options

My daily usage contains mostly relatively short highway-trips and some city stop&go-driving. I think it's about 70% highway & 30% city.
Most of the highway trips are usually during rushhours though.

What I noticed during longer highway-trips, when doing around 60-65 in OD, was that I had to give it a tad more throttle than with the 904, to just maintain that speed. Intake vacuum is between 18-15, while normally it was around 18-22 during these speeds.
Slight changes in road-slope sometimes cause the car to slow back down to 50-55, which causes lower engine vacuum because of the wider throttle-opening and increased engine-load.
The stock (8.6:1cr) motor just doesn't make enough torque in those low rpm's. (I'm running on LPG/Propane aswell though)