Well it sounds if your doing all the right things, the reason I asked about the cam seals is; I sent my head away to be skimmed and left them the valve seal and cam seals to be fitted. Collected the head late one Saturday night and started reassembling the inlet manifold parts etc. I fitted the cam rear plate and pulleys on the garage bench with the inlet side of the head facing me. Put the head on the next day and started her up only to find oil gushing out of the bottom front part of the engine. The machine shop that did the head had forgotten to fit the cam seals. Managed to get ?50 ($90) back as compensation for cleaning up all the oil down the driveway.