400E/V8 starting problem

[peterhardie]

This is a VERY rare problem, maybe 3-4 times a year on a daily driver. My wife's car will flood (I am guessing) badly, and will take a minute or so of cranking with the accelerator floored to get it to start. It will bog a bit when pressed for a while driving, then return to smoth running.

It happens so rarely, I can't pinpoint the exact circumstances. Yesterday, the car had not been driven much this week, moved it briefly to clear snow from the driveway. Weather was damp, above freezing.

Any ideas???