In fact, a bit of history: when we purchased Ava, acceleration was so poor, she couldn't even keep up with leisure traffic flow in town - light to light. Lovins along the way helped - valve adjustments, filters, etc. Then one day, Janet headed off to town, and couldn't climb out the drive onto the highway - she just wouldn't throttle up. A trip to the mechanics for a couple cans of Diesel Purge, and she was back on the road, but she has always continued to struggle. I do the yearly valve adjust and purge...

A year ago, I did a comp check - it was all over the place, so valve adj + main fuel filter full of trans fluid - 4 up - 1 down - so soaked #1 with brake fluid - all comp good and within 10 percent.

I still need to send the injectors in for pop and pattern test.
We also just shocked the tank with biobor...
wow, just how tight does that main fuel filter have to be to not leak???