help! my Volvo s70 t5 doesn't start after replacing a new head gasket. i replaced all the cams (intake and exhaust) into its mark

it crank, engine turn so fine, sound like it will start for second but doesn't start.

all plugs are firing but they get wet so easy

 

What year (ie with or without VVT)? Did you double check the timing marks? did you clean the cylinders when you did the head? if so the walls may be dry and need some oil to help build compression. (ie put a tsp or two in each via the spark plug).

 

Did you use a camshaft lock? the cams are free spinning and may be off a degree. check the back end of the cam shafts on the back side possibly?

 

i did double check timing set. i even check compression test in every cylinder which is 5,1bar each cylinder.

when i diagnose it tells me that "fuel pressure is too high" and plugs gets so wet easy