As above should always be taken to get de gased before any work is carried out my cosh license expired last year but I'm glad the law was implemented few years back
750cc injectors will be needed for anything above 1.5 bar If you want good idle go for id1000 Like said that turbo spools super fast so concentrate on reliability 8.2 - 8.5/1 cr would be just right
Sounds like there's excess rubber from the old bush get a round file make sure it not ruff And the most important part plenty of lube no women like a dry ####