Anyone have issues with weak jake performance? Mine is seriously weak, as in reminds me of a 3406E. It's a 389 with 565/2050 turned down to...
What is it you’re disappointed about with your 565/2050?
I agree with you for the most part. It’s been my experience that I could get the same MPG’s with a tuned 625hp Acert Cat in a flat top Pete as...
I’m really struggling between choosing a 500hp efficiency series or a 565 performance in a new truck. I don’t need the high HP as I’m running very...
Kid the sooner you learn that you know #### about ####, the better off you’ll be. I like your enthusiasm but spend more time reading and less time...
I have to laugh a little here at the misperceptions lf this engine. I have a 2014 579 with the 500/1850 Mx13, 18spd and 3.91’s with about 370,000...
Back to the topic, I average about 3.75 - 4mpg.