There are several of us on the forum with this or a similar setup. My honest opinion - it runs as sweet as a brand new vehicle, and has been no less fun to tinker with, but is not without its problems for me. I had been having a awful time tracking down a check engine light, which was bringing up two different sets of codes on two different computers I had. I spent a lot of time and money tracking it down - new fuel lines, new sensors all around, new gaskets all around, and I finally narrowed it down to a couple problems: 1) One PCM was programmed wrong, so it was always kicking codes related to the readiness of the oxygen sensors, no matter what 2) the MAF is incredibly sensitive to what's touching it. In my case, I found that when I took the filter off it would read fine. As soon as I put the filter flange on (not even the filter itself, just the cuff that secures it and in no way obstructs the opening), the readings would go wonky. I've found a happy medium where they're still a bit wonky but haven't managed to kick the check engine light on. At some point I may consider using a different variety of MAF - the slot kind.
Other than that, it has a ton of guts and I can keep up with traffic going 80+mph. It really feels like a brand new vehicle, and provided I can work the remaining bugs out (redoing the brake system now), I'm really excited to start driving it again.[/Q
How does the low rpm response and torque feel compared to the 5.3?
Chris