Bear in mind that all of the 5 Edelbrock intake manifolds I have removed/installed were purchased used or "inherited". 2 of them were pulled off engines at junkyards, the others came on engines in vehicles owned by my Dad or Grandfather. both worked as mechanics at one point on heavy equipment, my Dad as a certified weldor as well. I am neither of those things officially, but have acquired knowledge and experience over the years from reading books and TSMS, talking to those who are mechanics, watching videos, and through a lot of trial and error working on my own stuff because the local wrench-benders. making $50 to $150 an hour dont know how to not FUBAR something on an FSJ. to be fair: most mechanics in shops these days were born after the FSJ Trucks were discontinued by Chrysler. But even in the 199Os, when ChrysIer carried parts for the recently acquired Jeep brand, the mechanics in my area had very little to no experience working on them...but oven routine fixes They managed to screw up. So I began to learn how to do it myself. every fix was a lesson. I'm still learning. I hope my lessons can benefit others who, for some strange reason, like yelling at 45 year old rusted bolts as much as I dont.