The simple answer is no. Let's allow for some breakthrough that stops the myostatin inhibitor to stop us growing to be switched off. Ok.
So what next.
You'd have constantly growing muscles (given the usual conditions) on top of the same bone structure (even with adaption they grow much slower), the same connective tissue (ditto), the same heart, lungs and so on.
Let's pick one muscle - the biceps - we'd make them 30" right? About ten minutes before they tore right off the bone. Apply the same to everything else.
It's why slow and steady growth to a natural limit - even with help - works.
Nature... that bitch, combined with evolution (also a bitch) knows all this.