Bucking Under Load

The Guac`s been out of commission for a month while I try to figure out why it`s bucking under load.

Fuel pressure is higher than it should, but it probably doesn`t cause this.

All ignition components tested or replaced.

Valve adjustment complete.

Vacuum gauge steady low.

Photos of fuel pressure test here.

Here`s a video of all the gauges going. Note the jittery timing mark is due to the frames of the camera not lining up with the strobing of the timing light. It`s rock solid.