Basically, the "F" in the FE engine designation refer to an engine that is design to have good low rpm response, and high torque (relatively). Cam profile and head design are to support that powerband. Internal parts are of lighter duty variety to promote good throttle response. A good all-around day-to-day engine with excellent drivability.
While the "G" in the GE designation mean the engine is more performance oriented. Higher lift & duration cam and intake port design to compliment higher flow. Draw back to that is a sacrifice in low rpm performance. Internal parts generally are more stout comparing to FE engine to cope with extra load. 4A, 3S, , 2ZZ, 1 & 2JZ are some of the famous GE engine.
Back to my question....how hard does she pull?