In answer to mjwes19 yep you got in one. Glow plug most likely. The glow plug should burn brightly & soon as it diminishes they need changing. Engines will run but poorly if that. The life of the plug could last days to weeks. It all depends how you have been running your engine.
In regards to engine temps, don;t stress the .27 is known to run at its best at that temp. It does still depend on outside temps to a certain degree but I have had mine run generally between about 265-300F. I've had various people tell that its not supprising as it is a big block engine.
The team infinity engine & the orion wasp are virtually identical & the latest wasp .28 has a running temp of 280F.
So I wouldn;t stress. The only thing I have noticed at those temps is keeping the car running & preventing it from stalling. As long as you have it tuned properly though it should be fine. I've been thrashing mine heaps & it runs perfectly. I must admit it took a very long time for the engine to achieve a stable tune.
A few things though that I have done to maximise performance is replacing the airfilter with a much larger truck style one. The engine seems to just want to suck done the air & it changed the whole engine perfirmance & sound.
The other thing I did to cool it down was that I fitted a massive cooling head on it. Its from a sirio .27 big block but fits well. Amazing cooling effect as it now runs at about 180F! Had to check it with 2 temp guns. I was also concerned that it was running too cool now. Spoke to the GM of the Co. & he assured me that they runn all their buggies perfectly at that temp. I've had that for a few weeks now & has improved the performance incredibly & you could litterally run tank after tank through it.
Anyway either way they are meant to run hot in their stock form as the head is generally too small for such a large engine.