2000 Jaguar XJ8 engine flooding?

Check PCV system .. check you are getting fuel onto plugs (crank engine,remove a plug to check it is wet with fuel)

V8
Engine ventilation is through a part load and a full load breather. See Fig. 7 . The part load breather is a flexible composite hose connected between the oil separator in left bank camshaft cover and the induction elbow. A restrictor in the outlet from the oil separator prevents reverse flow.
The full load breather is a flexible composite hose connected between the oil separator in right bank camshaft cover and the air intake duct.
Ends of the breather hoses incorporate quick release connectors. The oil separators consist of wire gauze packed into an open ended enclosure below the breather outlet.
Fig. 7: Identifying Crankcase Ventilation System Components (V8)