I have also emailed venom performance, to get their response on this and also to see if they made a replacement injector with a thermal barrier on it.
I was told by the guy doing my kit, that you would know almost right away if there is a problem, due the resultant engine vapor lock. We should already being hearing about a problem if there is going to be one especially with all the people that are sticking their foot in the gas pedal. Bottom line if there hasn't been a problem by now there won't be. He got his information from a well known name in racing down here in San Diego. This same "well known" guy made a heat shield for the intake manifold on his PT Cruiser which serves to prevent a problem like this from occurring, which is an in expensive fix to prevent problems of this type from occuring. I asked for a quote, to have one made for me. Soo, I will do some more research. It would be nice if DCX answered the question. But looks to be a non-issue from here. More to come.
Here are links to some information that I've found already.
http://www.theinjectorperfector.net/tech_info.htm
http://www.theinjectorperfector.net/
http://www.fiveomotorsport.com/Injector_Sets.asp
macster