Not for the faint of heart. You are on your own whether to consider following suggestion. However I have successfully done this in the past.

Disconnect fan and alt belt.

Using garden hose with no nozzle on it and engine NOT hot, warm ok.

Place and hold end of hose on radiator end of turkey pan

Have your helper start the engine.

Run for a minute to allow to settle down as much as possible. Note engine rhythm.

Turn on water to a modest stream under and over intake and all possible vacuum leak possibilities. A couple of minutes should prove sufficient. Fan was disconnected so as not to spray water everywhere.

Engine rhythm change at all as it will if water is sucked into engine? Hopefully not enough to cause hydrolock.


Also as ignition change was added to the equation, consider installation of prior system to eliminate new ignition as cause of problem.