Thanks for all the replies guys. I feel so wanted!
I still haven't got to the multimeter at work yet. Can't get out of the office!!!!!!!!!! I'm sure to get it done tomorrow.
Jonny:
You said I would need the stnd ecu to be re mapped due to the new injectors. I've seen many sites on the net about upgrading to larger injectors ie 2jz supra that didn't mention anything about having to change the ecu, they did say there was some tuning to be done as the car in question ran richer, but thats what I want to cope with higher boost.
Thanks for all the info.
Hopefuly I'll be able to help out some poor sod like me in the future.
FYI I have a mate that thinks theres a shop in town with a dyno thats sitting doing nothing, not even hooked up. Might be able to get it hooked up and running! Free dyno runs!!!! Should be able to doco the upgrades on the supra from stock. Once I figure out what to upgrade!!!