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...anyone has got a port map drawing that they have taken from a standard GT186 barrel? I have one fitted and want to compare it to my old Suzuki conversion set-up.

Thanks in advance

Mark

Before I triple port it

Thanks Dimitri's! That's great, much appreciated

What changes did you make and what sort of results did you get?

Mark

I raised and widened exaust port,
widened transfer ports,
widened boost finger ports and enlarged the inlet port,
I also added an extra transfer port,
it goes nice

Good to hear did it affect the mpg much?

I don't know,sorry,
I got the cylinder used.