Stephen, thanks for the info, alraedy ordered Denso IA01-32. Good tip.

Now you've seen pistons, heads with squish nr and you know I use unleaded elf mits 46, any suggestions on the carbs settings I do have?

MJ 220/200
PJ 40 both
Needle 1169 both
Airscrew 1 3/4 turns both

I want to know if what I am running is safe or not, not to start messing around!

Many thanks

Normally we do not discuss jetting out side of the members forum. However this is slightly different and I feel that a little help might be appropriate. In my opinion the settings you have will be very rich and will need to be weakened off to get the bike to pull cleanly. I would guess you will be looking at running a main jet of around 180-185.
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If I have to take the carbs off once more...

Thanks Stephen, to end up, both barrels same 180/185 or shall I increase lower cyl above this figure as it runs cooler than the upper one?

I wouldn't just put those jets in it. I would slowly work down but I wouldn't be surprised if it ended up running those sort of jet sizes. The lower cylinder my well need to be one or two sizes bigger on the main jet and maybe a needle clip richer. We also run the lower head volume 0.2cc bigger than the top cylinder to help stop the det.
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If I have to take the carbs off once more...