Could anyone tell me if its possible to tune my carbs myself or should I find someone who can

You should definitely be able to tune the carbs yourself if you understand how they work. I tuned mine myself and I got my car running better than the mechanic (I spent the time to modify needles rather than just replacing them).

If you are worried, it might be best to have someone with you that has tuned them before to show you.

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"In two years time your car will be like a lady's clothes, out of date, my car will still be in fashion when I am dead" - Sir Alec speaking to Pininfarina

Thanks 1018 cc, however I only have me unfortunately

There is a lot of info on the web.
Here is just 2 that I have saved in my favorites.
http://www.minimania.com/Synchronizatio ... arburetors
http://joltfreak.tripod.com/id26.html