Drove it to work today and it was a warm day, upper 70s, and it ran fine. It's now way under-geared though... I was cruising 60 MPH in 4th gear at ~2900 RPM. The speedometer has approximately 15% error. Shifting to 5th dropped RPMs to ~2200-2400 which is only doable on the flats.
that things going to like upper 3000 range. probably get best mileage around 3200. stock gears right now??