I'm in the latter stages of preparing the engine of my 1978 512BB for removal, but with no clear plan as to what to do next. I'd be very grateful for some general advice on what should be done as a matter of course, and also some specific questions. Prior to starting the project, she was running ok, albeit a bit rough, and with no obvious major defects other than a badly slipping clutch. Recorded mileage is a bit over 15,000. Service history is a bit sketchy, but I think it's been some time since she had a good one. Specifically, Which service tasks should definitely be done? Should I remove the cylinder heads, and should I take the opportunity to prepare the valve seats for unleaded fuel? Can I just disconnect the air-conditioning pipes or is there something nasty about the refrigerant? (sorry about my ignorance). What is it like getting hold of things like gaskets and hoses? Any suggestions on where to go for new manifolds? Is there somone in the UK who can overhaul my webbers? How the hell do I disconnect the water pipes from the front of the engine? If I cut the water pipes will I be able to replace them easily? All suggestions gratefully received. No doubt more questions to come. Thanks very much.