Damo, please do not take offence from this but if you require help with specific car setup, speedo setup etc please use the regular forum in the electronics, Schumacher section etc. The moderators are not fond of people discussing these matters on club sub sections as asking on the main forum means more accessability for people with similar issues.
I used to run at GT2.0 and found punch level 3-4 a good place to start with a 2wd but you will need to ask elsewhere for more info. Post in the electrics section you will receive plenty of good advice there.
Chris
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