Hello all. I've just finished rebuilding my engine with it's SD1 heads and all new shiny bits. However the bloody thing won't start. I'm getting a spark but the plugs are still dry. There is fuel in the filter and in the float chambers. Could it be that there is not enough fuel in the tank? Also the oil pressure light doesn't go out. I'm told that it's best to prime the pump by taking the distributor out and spin it with a drill. Has anyone else heard this? Any clues greatfully received.