Cheers mate. all help/information is muchly appreciated.
After reading around on www.toyotanation.com mainly taking notice to tony the tigers post. He was able to run 10psi boost into his 1MZ and only apon upgrading his injectors to 550cc items and running a supra fuel map did he start having transmisson/driveline issues. Altho with out the injectors and map he was running a little on the lean side so to speak