....opening up the low end needle closer to the factory
recommendation is probably your best move....carb
settings can change as the engine breaks in. Sometimes
a new set-up plane will work fine for a while....and then
heh heh heh....the Gremlins strike....and things get silly
for no apparent reason....

....Hobbsy is right....the Cline pump/regulator will scare off
all the Gremlins permantly....[8D]....

....for Heavens sake....take that JUNKY APC off that thing,
and save it for scaling fish....or digging weeds........
yes 11,700 is lugging that motor....use the 10-8, and it
will pick up revs into the 14K range....and the plane will go
15-20 MPH faster....

....make 100% sure the carb is clean in the nozzle, and the
low speed needle....and the carb is down tight against the
O-ring. I don't know how many times a Fella has had some
problem crop-up....we all troubleshoot the darned thing
from afar....and the Guy comes back a few days later and
says...." I cleaned the carb, and the engine runs Great now,
....thanks Fellas ".

But on the other hand....this is fun....people participate...
and in the end, we all learn from it.

That's what these Forums are all about........

....keep us posted....