Ok so i have a 1997 mits eclipse gs and im doing the 4.0L jeep throttle body and im worried about fuel deliverey and i was wonder what stock fuel injector from another engine will plug right into my stock fuel rail and injector harness or would the stock 420a injectors be enough for safe operation? And my car is also running rich but getting 32mpg so I thought that doing the bigger throttle body would fix the rich running problem. If anyone can help with this issue and be able to teach me more about the fuel world I would be greatly appreciative.

keep dsm alive and keep up the awesome builds and ill keep the update of my build up.

Thanks.

No need to upgrade fuel injectors if you are just doing basic NA bolt-ons.

You can read through this section for fuel system info if you are going turbo or something. http://2gnt.com/index.php?d=Fuel%20System

Its on the stock ECU, they run rich. Does it throw a code, or are you looking at a A/F gauge?

But there is no need for larger injectors at this stage of your modding.