tell me more about the standalone system. I really like the 4.3, andc as it stands now, its practically in my garage. I got it with 30,000 miles for $1600.00. How do I pass up such a tenderly used, affordable engine. I wanna attempt to get past the ECU and Oil pan / pick-up differnces. I'm willing to put in alot of time, effort and headaches, I welcome them. I just gotta know if its possible and how to do it.