Thanks for your responses! What i ended up doing is taking off the fuel injector pintle cap from the old 280ZX injectors and installed them one the new Supra injectors with a thin file of silicone (just like the stock ones had). I drilled out the hole to be similar in size to the Supra pintle. I am not 100% sure if this will work, and seeing as the car is still a few months away from being complete, I won't be able to test for leaks. I've yet to see anyone have this issue or address it if it was an issue, so I am going under the assumption that these were not Supra injectors as shown in the listing I bought them from. I'll update when i get it going.
As for the intake manifold/throttle body, I think I need a spacer regardless if I'm going the cable route. The spacers I've seen have more of a rectangular shape to them rather than square, which I assume is to cover that extra opening area. Again, I haven't seen anyone address this issue but I did see someone who had a similar question with no reply. Considering these are both fairly common (or discussed) mods, I'd assume there'd be more info on these nuances. Nevertheless, where there's a will, there's a way. I'll end up machining a plate to cover the area and push the TB out more. If anyone knows where I can buy one, I'd appreciate the link. Arizona Z didn't respond to an inquiry to purchase, Godzilla is out of stock.
Here she is below in her L24 glory...