Cheers guys, got it done. Had to undo the bolt AND push out the threaded insert and the carb move is a piece of cake then. The spring is easy with the right tool (home made), but still id rather have twin springs as the engine has the hooks, rather than a single spring right around.
Yeh im a Nitro virgin dude, first time! Got the car completely ready and going to NNRC, haven't had chance (or the balls) to put its first tank through it, but tomorrow is a bash day with loads of people around, so im going to be running it in, learning plenty and being more comfortable firing this up rather than doing it alone. (unless I have a lie-in bed, as im full of a cold
)
Chris