Cheers crash. I'll grab a C8HSA plug tomorrow and see how it goes. Failing that i might look at getting into a higher octane fuel. Just don't really want to spend $5 a litre on a CAG.
I really want to keep the T key as it makes heaps more power with it. I got a full 10 deg one off Daz the other day and tried it but it went terrible. So what ive done is make my own 5 deg one by grinding a knotch out of a standard key with an angle grinder.....
http://img.photobucket.com/albums/v1...0pics/tkey.jpg
The dotted lines are roughly how a 10 deg one looks and the grey is mine (roughly half the offset). So what i do is put the flywheel on with this key then turn it as far clockwise as i can then lock it up. What i can try is backing the flywheel off a bit to decrease the ignition timing if the colder plug doesn't work. I've had no dramas with the flywheel moving with this set up as it's on a tapered crank and the only load on the flywheel is when you pull start it.