When in doubt what type of injector, call the supplier and ask.

When the cap at the tip is removed from a pintle type, it looks like this:


As I indicated earlier, I strongly recommend avoiding this type entirely when E85 is used. They are prone to fouling at the pintle tip, and I've seen more than one instance where that has wrought complete havoc (as in engine failure). If all E85 could be guaranteed to be free of dissolved residue (which is a fantasy), it would not have been an issue.

I recommend ball types for high-duty use. They're faster than the heavier pintle mechanisms, and are less prone to fouling. Even when visibly tainted with E85 residue, they still flow well (as per my testing).

 

Its not about how well the injectors Deliver fuel. For me and 75% of the Supra world that are running RCs, they are having Problem with Idle. All the RC (550cc And Above) that we get are just like your Picture above, 1 single Spray Nozzle. Reason for asking about this is to see if the RCs or any other type of Injector that you all use have more than 1 Spray nozzle which helps us for a Smoother Idle. If your Stock Injectors have 4 Spray nozzles and fit Perfectly into our fuel rails then I would like to know what your 650cc and 750cc Injector looks like (Single Nozzle or Multiple) and do they fit the same as the 560cc Stockers?

 

It may not be the number of nozzles, but the type of injector. Some just don't give spray patterns and atomization quality of others. For example, a Fuel Injector Clinic BlueMAX injector is a fast, ball-type that completely outclasses Bosch's old pintle types when it comes to idle and low speed response. If 75% of the Supra world is using the same RC injector and the vast majority of those 75% are experiencing idle issues, perhaps it's time to try a different injector.

This being said, it is possible that you may see better idle characteristics from the stock EVO injectors, but I don't know if anyone here has a concrete answer to that question. Obviously, it would be best to find a way to try before you buy.

On another note, the Wiki article for the 2JZ GTE says only the JDM models have 440cc injectors, and that all export models (e.g. U.S.) have 550cc injectors, so ??? That seems to make sense, as the JDM model was given less power (as per agreement between Japanese automakers at the time). The question is which is in error?