I'm prepping to install my Radix M112 kit on my Yukon Denali (LQ4 6.0L), and I'm doing all the reading I can so that I am well-prepared before jumping into the project. One thing that I have read in various forums is that people talk about "running out of injector" with the 42# injectors that are included with the Radix kit. If I'm using a 2.8 pully, with a mild cam, and the other mods listed in my sig, do you think I will be okay with the 42# injectors? Or should I try to set it up with 60#'ers before installing it? If so, are there any specific 60# injectors which are known to fit & work well with the Radix kit?

I'm not planning to anything more to the truck than what I have listed in my sig, so if I'll be okay with 42# injectors then I won't even both with going to 60#. I just want to try to do everything right from the beginning, rather than having to rip stuff out and change it later on down the road.

 

thinking you will need to go with the 60's

 

Some will probably say #42's would be fine. But i'd go #60's just so you wouldn't have to worry, and there's always room for upgrades.

 

Are there certain 60# injectors that are recommended for fitment & performance with the M112? And are they plug & play right in place of the 42#, or do you need to make any modifications to the fuel rail for them to fit?

 

Here what I used for my F/I build: https://www.performancetrucks.net/fo...d.php?t=416134