I have a 93 dakota 3.9l I got An exhaust and high flow filter and v8 tb on it so now that I got all this air comin in I need some more fuel I was thinking just throwing in the v8 injectors but idk if There is even a difference or if it's possible.. what do you suggest I do to get the fuel on a budget

 

What are you doing to tune the ECU?

Before you can even worry about more gas, you have to figure out how to tell the ECU what's happening.

So, before swapping injectors (and no, my book says that they're the same size!), you need to get into that ECU so you can tell it about the injectors you're putting on.

RwP

 

How would I go about getting the ecu updated

 

You need to send it off and get it re-programmed or buy a Mopar performance ECU.

 

Well is it worth it or should I start looking at other options

 

What are you attempting to accomplish?

 

what throttle body did you use for the swap

 

OP does not understand that getting more air in does nothing without supporting mods to the heads and exhaust. The computer will compensate if it thinks there is too much air. More air/fuel in does not equal more power. Simply will run rich.