at JONNOHR31, i dont exactly know what they machined, my brother got the machining work, the engine was my school project for HSC, i built most of it, brother payed for it all...
at abr33, we first started the engine in around july 2011, and since 16th feb, it probably has only been started ~15 times.
is this at all repairable, or a new head is needed now? definately a new cam is needed lol, on the positive side, at least i found this problem before something worse happened!