I suspect your gear fairing is actually increasing drag on your plane.
There was a guy named Mike Arnold who built a small plane powered by a rotax 582 and for awhile was the world record holder of a aircraft weighing less than 660lbs. He was the first person a far as anyone knows who managed to build a man carrying aircraft with a flat plate drag area <= to 1 sq ft. His 3km closed course speed record was 213 mph. Pretty good on just 60 hp(he figured his non optimal exhaust cost him 5 hp).

In any case he made a video detailing his drag reduction techniques.

The most relevant portion for your gear leg fairing starts about minute 40 to 52.

https://youtu.be/rxvoDbZpoY8?feature=shared