OS 91 sz pumped or not

[noste500]

I need to decide which one of the above to use.
I want to use the ar7100r with the sensor on the bottom plate. Therefore the pump is in the way!

Will the non pumped version get enough juice, ( I will be carbsmarting whichever motor I chose )
Or should I go with the pumped? and run a regular governor.
I would prefer the ar7100r sensor/ limiter, but don't want to be running lean.

Best route ???

[hornet dave]

non-pumped works fine if you use a uniflow tank setup. before i went to uniflow, the motor would lean up pretty good for the last 1/3 tank.