I have a 5.7 out of a 94 1500 I crammed in an AWD Astro. It has a 4L60E and uses the $OD xdf. Until this point It's remained mostly stock. It does have a "better" fuel pump out of a 98 CSFI Astro in the tank. I have modified governors and shift points to suit me, that's about it tho. This week I bolted on a torker intake and throttle body adapter/spacer. It starts and runs well but as I imagined it is by no means perfect. I have never tuned for fuel so this will be my first attempt. I know I have to get an ALDL and log my data but that's about it. I don't even know what parameter to begin to tune. SO, I need some help lol.