As stated: Yes.

I have one in a WM Super Chippy.
I moved the fuel nipple to the other side of the carb by set-screw-plugging the original hole and drilling/tapping a new one. I found that the idle needle needed to be leaned a little more than if it were upright.
For propper engine performance use the supplied choke adapter.
High-end needle should be 4-4 1/2 turns out.
Break-in takes a fair amount of fuel and time. (This is NOT a bad thing!)
While my engine doesn't have a lot of time on it, it seems to like 14" props.
Do be careful not to over-prime an inverted 4S.

If you don't want the choke pull-rod sticking out the side of your cowl you can prime the engine by holding your finger over the muffler exhaust and turning the engine over with an electric starter-it doesn't take much to flood the engine! (By plugging the exhaust, pressure builds up in the tank and forces fuel into the carb.)

A remote glowplug adapter is a good idea also.

When storing an airplane with an inverted engine it is a good idea to build a cradle such that the airplane is inverted. In this manner the afterrun lube you use won't drain out of the bearings and collect in the head. I suppose storing it upright on it's nose would suffice.

Is this a new engine?