still trying to figure this one out getting on my nerves i tried adjusting the timing again went a bit forward a bit backward to see if it made any difference turned by hand every time to make sure it never seized up, still wont start pops and bangs every now and then jus wont run i beginning to think it might be other thing now, the car was parked for 3 weeks and was running before stripping the cvh engine out then bought a built zvh bottom end running and put my head on using a copper blanking plate and a head gasket, there is spark and fuel and as i said it pops like its going to start every now and then....anyone got a ofab ecu i could plug into it round the herts area?