Vickraft,

http://www.ifsja.org/forums/vb/showthread.php?t=69362

http://www.binderplanet.com/forums/showthread.php?t=47254

http://www.bigscaryjeep.com/TBI_FAQ.html

http://www.megamanual.com/ms2/GM_7pinHEI.htm

http://www.megamanual.com/ms2/GM_7pinHEI.htm

http://www.jagsthatrun.com/V8-chapters/V8-tpi-Speed-Sensors.pdf

These are some of the site I have read before starting the swap from carb to TBI on the 250ci engine in my Suburban. A lot of good info, I would say read it all before you start! The page hosted on BinderPlanet has many links you need to open to find more; even the Megasquirt site has nice info, to better understand what needs to be done.
I have also bought a custom chip from Howell.
The main issue is that I cannot get my truck to idle properly, and I have spent a lot of time troubleshooting!...
Good luck!

Last edited by wave1957; 04/17/2011 7:56 PM.
'57 Chevy Suburban; '70 Chevy Impala.