hey was driving my fummins tonight and it was running great while i was cruising then once i got to the stop light i noticed it started running rough kinda sounded like it was running out of fuel so i stopped and topped up the tank and nothing changed so we stopped and pulled the rocker covers thinking it might have broke a valve spring maybe but all looked fine we then cracked the injector lines one at a time while running and #4 made no difference but was spraying hard from the fitting unlike the others so im thinking stuck injector ? .... so i limped it home and it was sounding worse and sounds like its poping out of the intake and is smokeing bad and smells like unburnt fuel ???? im stumped please help

---AutoMerged DoublePost---

not to worry turned out it blew the head gasket between #4-5 ....

 

Ouch