Hi thanks for the input guys

I thought the prop was about ok, perhaps a little too much during running in, but close and I have been careful not to over load it in flight ie mostly 1/2 to 3/4  throttle

But I could not get it to richen up at the high end hence the needle so far out

i will go back and try using your settings which as you say are close to factory.

A club mate has the same motor but different pipe, his is a tuned pipe whereas I am using the MVVS cannister pipe, which I assumed to set the ignition to long pipe, i wondered if it is where the baffle is and may be I should be on short pipe ignititon setting?

If not I might go down in prop size and pitch to see if I can get it to rev into the 6500 range

any further views welcomed

Ian