90 240sx Ka24e doesnt stay running
 

okay so this car has sat through the last winter and hass 15x,xxx miles on it.
we can start it but if u let off the gas it dies, i pulled the spark plugs and it looks like oil on plug's # 1 and 3.
the engine runs very rough and back fires every once and a while. the timing ignition is hooked up right but i dont know about the timing
the exhaust has a white tint to it.

im thinking maybe plugs and with the oil maybe a head gasket???

some help would be nice...

my guess, blown headgasket, messed up piston rings on pistons 1 and 3. emissions stuff is clogged, IACV. get a fsm at zeroyon.com