hey darren have you got your ac sorted yet?? reading one of your posts made me realise i have to put a tx valve on my system!! ive done the same conversion. vr 5L efi into my vk calais, and just plumbed all my lines up to the compressor,thinking that the vk system had a inline orifus tube in it , but if it ran on r12 it wont will it??? what sort of tx do we have to use??