LA7's are considered "Uber" by most pilots.
Reason being, is that they are one of the fastest planes in the game, along with the guns, turn rate, etc. The thing they lack is fuel. I do not remember how much range the LA7 has on 100%, but it is not that far. I do know people that can extend the range by throttle control. As others have said, perking it, would mean complaints about non-perked good planes, such as the LA5Fn, P51D's, and other good planes.