got it sorted mate! my w*nker mate had cylinders 2+3 the wrong way round! Theyve got little markers on them which i was trusting were right but they werent. He's getting a slap when i see him. It now runs on all 4, but is a bit hesitant under 2500rpm.. wont tickover and cuts out, so possibly a boost hose or vaccum pipe not quite on right. will have to have a closer inspection in daylight tomorrow. nice to hear it running again anyway! thanks for you help