Engine fault

[rikster666]

I recently had my head gasket go so have just had both replaced,its now all back together and still missfiring,after a compression test right bank showing 125psi over all 4 pots however left bank showing 100psi on each end pot and 60 to 70 psi on middle two does this mean engine totaly worthless now ??? any advice greatly appreciated.

[TVR Beaver]

What happened when it went?..
Have you set pre-load when replacing the rocker shaft.. or is it holding the valves open??