That's a really weak argument for your case, and if you can't support it then you shouldn't be spreading this crap around. People can make up all the arguments against it that they want, but the fact remains that I have proven, time and time again, that it's reliable under the the extreme abuse of road course racing. Hard use on the street or going down the drag strip are a day in the park compared to what I regularly put this car through.

The ignition timing example is exaggerated, plain and simple... you would NEVER set the AFC that lean unless you have bigger than 450cc injectors or increased the fuel pressure. He claims it's only -40%, but the numbers say -43%... either way, that's too lean (even at idle). The ignition timing will also vary depending on the ECU, but a little ignition advance under boost really isn't as bad as people think it is anyway. It's all about combustion chamber heat and pressure... too much causes pre-ignition and detonation, as well as other problems. FI creates a lot of that heat and pressure, and spark advance adds some more, but you can do things to cool it... you really have to for FI anyway. Running colder spark plugs is one of the ways that I deal with this, and there are others. However, I would not recommend running race fuel unless there is a lot of boost involved; if you have problems with premium pump gas from a decent brand, then you need to fix something.

The reason that a lot of people have problems is because they don't do anything about the combustion chamber heat, never tune the A/F properly, and/or totally screw up the narrow throttle map and throttle point settings. The narrow throttle map should be about -38 or -39 at all rpms, and the throttle points should be something like 20% and 50%. Many people run it leaner than that and use 76% and 77% for the points, which is absolutely horrible.