As for power comparisons - these are hard to be exact -
setup I showed runs 6400--on 24x10 MenzS- tho I really like to run it slower -
around 6200-
This the latest setup ZDZ60 -having a Walbro WJ38A same as on the 80 singles - power is up and all in all very smooth .
on 22x10 props the rpm is in the 7000 's but performance-not as good
the 24x10menzS is -so far the best STOCK propmatch in this 19 lb model -
we gave away the Mejzlic -24x10- lots of revs - but the " instant pull just wasn't there --
each brand engine has it's own best operating setup and this seems to be the best "non tuned" setup on this 60 .