Just to add, it's got a vernier pulley that's set to 10 degrees retarded. The timing on the dissy looks to be well out too but I didn't want to touch anything for the moment. I reckon setting everything back to standard timing and working from scratch would be the best bet. Or even setting it all to standard timing and then taking it somewhere for a proper set up.

Gotech manual seems a bit ambiguous as the air temp sensor it refers to needing a connector that you can screw in to your inlet pipe so I reckon it's got to be charge temp. Plus there's no other charge temp sensor connected up in the bay so it would be logical for that to be it. Can the standard FRST charge temp sensor be connected up to the gotech? The hall sender and ERST throttle position are, so if we could use the FRST charge temp sensor already in the inlet manifold then that would be a good solution. Just need to know if it operates in the range the gotech will be able to use?

It's definitely started to get very smokey on start up. This does clear after a few mins but it's pretty smokey. I've got some stem seals so we can change those and see what happens. If that doesn't sort it then it's got to be turbo seals surely?