Yes i understand mate.its perfect running before.if i was to put the group a hg on ot will be back running 100 percent again.but people thinking am having a go and blaming some 1 where as i am not.msd did a great job on the car but if i was just more clued up more about cosworths i would with out thinking of had the block done but i was told it should be ok.so me been me went along with it.you win some you lose some