Happy to report after chasing a terrible knocking noise that turned out to be a worn rocker my zed is now ready to roll.
been on a couple of drives around the block which is 4km and somewhat resembling mt panorama I can say it goes great. Heaps of power, pretty much the same go as the v8.
thanks to all who offered advice along the way. Much appreciated. Also a big shout out to Stewart Wilkins who never failed to get me bits overnight and for the help he gave me. Top guy.