i was wondering what stock cars i can get the same 550cc injectors that will fit in the 7mgte. model specific and year specific. also what kind of impedance. what is the difference of side feed and top feed. i've never seen side feed so i don't know what the heck that is. i also heard that you can use 89-91 rx7 turbo injectors. another source said something about making sure you get the 550cc instead of the 850cc. does the rx7 turbo come with 2 different injectors? last thing, can you take out the fuel injector resistor block? that's it. thanks a lot guys.