Thanks for the info you guys... I'm gonna do the upgrade on my W-150, it currently has the lean burn sytem and was trying to figure out if I should keep the same wiring harness and modify it or change the entire engine harness... I found one at the junk yard this past weekend but it was for the dual pick up. Also just today on my W-350 while driving to work it cut out and died on me twice along with a loud back fire. Each time I just pulled over and it started right back up...The rest of the day and on my way home it ran good as it usually does.. Throughout the day when ever I was near the ruch it had a slight odor of burning plastic/electronics... I kinda suspect it might be the ICM, had a problem similar a few yrs ago and that was it, replaced it with no problems since until today. I am the 2nd owner of this truck, no mods, nothing hacked out on it etc... I would like to possibly do the HEI upgrade on this as well and this truck has dual pick ups on it w/ vaccum advance... does anyone know which coil is the start and which one is the run? Which plug would you hook up the HEI to since it has 2?
Still trying to figure out how to get a picture of these on here...haha