Believe it or not, I actually do like your recommendation! This is exactly the steps that I have been contemplating. What Im unsure of, is if there is a way to test for bad head gaskets before taking her down for a new cooler and egr delete, that way it could all be done at once. Kind of a one and done.
Then again, financially, I may not have a choice but to follow the exact steps you have recommended.
Thanks for the help, its greatly appreciated.
Well... puking from the advanced timing (tune) is a pretty good sign that the headgaskets are bad.
If it wasn't puking when the truck was stock, I'd put it back to stock and start saving your pennies to do a headgasket and stud job.
I understand the "wanting to do it all at once" mentality, but that never really works unless you have the coin to do it.
I'm in the same boat right now because I waited too long to do my EGR delete, but I kept my tune on.
Now that the EGR delete has been done and my oil cooler has been replaced, I still puke.
So the choice is up to you because the headgaskets will fail eventually with any tune IMHO.