-Connect fuel pressure gauges & set for control pressure. Connect dwell meter for good measure.
-Remove vacuum enrichment hose from T and plug engine side
-Run car to temp. Do what is necessary to keep it idling.
-Reference high end of pressure chart for temp, adjust WUR hex screw until CP reads center of spec
-If fueling becomes poor and idle suffers, make small corrections to CP and adjust CO to compensate
-Repeat last 2 until control pressure full hot reading is correct
-Adjust CO per dwell procedure.
-Allow vehicle to completely cool, then recheck control pressure referenced at engine ambient temp. Ice it down if you want to check it even lower.
-If how & cold control pressures are withing spec, solve no further fueling issues with control pressure adjustments. Seal the bottom cap and leave it alone.
-Connect vacuum enrichment circuit to handheld vacuum pump and perform pressure checks per manual
If you still have fuel problems after this, it's not the WUR