Alright, just a little update on the TrackStar Supar engine if anyone cares for it.

After a few more runs and adjustment (not race tune yet) the engine is running very strong and got plenty of punch more so than my RTR force .28. As you can see I don't have much to compares to...
I end up buying a new sub-c glow plug igniter from Tower and it helps tremendously!!! If you are new to the hobby like me, this should be the first thing you buy. Your chance of getting the engine started will be much higher.
The engine sounds a little rough when cold but after warm up, it has that high rpm, high pitch sound I heard from others high-end engine. More like a F1 engine compares to a NASCAR engine.
Now time will tell how it will perform under stress and the longevity of it.