It is not standar, it is running 803 with twin 45 jenvys injectors, cams Dunellen, STEEL with rods, JE forged pistons, arp bolts, knife edged and balanced crank.. Its running on dta S40pro ignition.
I have not yet raised the valve cover, but I think there can be only two options.
The hydraulic tappets are stiff or head gasket is cracked and communicates the first and second cylinder.
What do you think?