ORIGINAL: 52larry52
The 65LA will do it for less money (about $60 less)! The LA series uses an air bleed carb (one needle for adjustment) and is very user friendly but will not work in an inverted instalation.
Says WHO?????
Mine work just fine thank you....
Failure to work inverted is more of an operator, tuning, or plumbing problem than anything else.
That said the FX is a better choice as you've indicated due to the better power output.
The .65LA is about the equivalent of a normally aspirated .46AX in terms of power.