Howdy. Hey Ed. My point is, what does your advanced timing do to your motor? Have you ever opened up a motor with advanced timing and taken a look? Advancing your timing can and most likely will cause damage and at the very least decrease the life expectancy. If you can rebuild your own motors that's great. I too have a couple of engines that are advanced from factory, but they are in no way stock motors either.
As far as having experience??????? I've never honestly owned 2.8, 3.1 or 3.4 personally. Generally speaking, I don't like GM. I've turned wrenches on everything out in the field and literally have experience on thousands of vehicles (including ones with the above engines). The majority of my experience is on Internationals (my personal favorites) and German cars. I feel this is a moot point however as we are talking about basic engine theory, not specific motors. The advanced timing issue relates to all motors regardless of make or model.
My suggestions I post to this forum are for your Joe six-pack shadetree mechanic. I could sit here and throw a bunch of acronyms out and talk heavy theory and so forth, but most folks with few exceptions wouldn't have a clue what I was talking about. So, as not to get folks in trouble I try and suggest the best course of action based upon general theory. This usually goes back to keeping your vehicle as is was designed to be, stock.
If you don't like my posts just ignore them. But don't pee on me and tell me it's raining.
-Kevin