Slim, I do believe that I posted the information for you to contact Stan Weiss about your injector questions... If he was unable to answer them, then you should contact Linder Technical Services in Indianapolis.

I have had many conversations with both... And they answered all of my questions that you quoted in the previous post... I cannot address this issue as technically and precisely as they can, so I won't even try.

All I can give you a synopsis of everything that has been repeated to me by everyone who is technically proficient on this issue... Add more fuel, then you need to add more air, then you need to provide the engine management to handle both, then you need to make sure it has the optimized outlet size for the exhaust gasses, etc, etc, etc...

And I know I have repeated this statement, which was professed to me by Scott Bingham of Bosch North America. The ME2.8 & 2.8.1 is designed to maintain a constant stociometric state by the signals from all of the integrated sensors. This is approximately 12% leaner than would normally produce maximum HP in the engine, but is designed this way to limit carb emmissions. Every sensor MAF MAP IAT KNOCK TP 02 ECT talk to the ECU which is programmed to cut fuel, add fuel, retard timing, advance timing to maintain it's pre-programmed state.

http://www.autospeed.com/cms/A_1595/article.html

Now, if all of those resources have not answered your question, which was very similar to mine awhile ago, perhaps I can say this... YES, the NA engine will benefit from larger injectors if you have the engine management system that will allow you to do it...