you say the injectors are firing only once, if thats the case why are the plugs soaked if you have a spark.

how is the fuel getting in there ?

i would dry the plugs out, and the cylinders and start with scoping cam and crank, and make sure you have a spark. at the plugs.

if you don't have a injection pulse when cranking, look to see if the injectors are power or ground switched and work out whats missing.