One thing to take note of: dielectric grease does not conduct electricity; it is an insulator. Many people do not realize this. Most of the time it is a non-issue. However, if you gobbed it into the boot, well it could be. If all your other tests and checks fail, I may try cleaning out the boots.

I am thinking the Nascar variant is a tad different than a traditional Detroit Locker. At least from what I am seeing on the google. That may, or may not, explain the reasoning for different actions. Detroit Lockers have been known far and wide for strength as long as they are fully locked. Neither is to be confused with a "lunch box" locker. I am running one of those in a Dana 60 rear, and to date it has done fine. That is far from drag strip abuse though.

For the OP, if you still have questions, maybe call their tech line. As pricey as they are I would make certain before investing. 

Like previously asked.....if the motor is not shot that is in the truck, then a 360 can absolutely be made to run well. Especially if it is the OEM one. Long Tube Hedders, RPM intake, and a cam swap. I did it to mine and it went from turd to whipping the pants off my 2003 F250 V10. To top it off the motor was on her last leg. I can only imagine how it would have been with fresh heads, correct springs etc.
Nothing is cheap about a rebuild.

Assuming you got a custom grind cam, and/or likely from Comp....be certain to check the cam bolt thread pitch. Comp can, and does, swap cores and the thread pitch can differ from OEM.
There is no data, no nothing....you are just expected to know this. At least this is how it was circa 2016.

Maybe a little late but I would look hard at a Prime Weld Machine or CK. I bought the Prime Weld Tig225 and it will do about anything you would ever want to and the price is very reasonable. They are good machines and use CK torch/lead and quality parts.
I will say as a novice, the knobs and settings re a bit more complicated than a machine that has auto adjust but you are getting a lot of machine for the money capability wise. I found pulse to be awesome doing some 1/8" AL boxes. Another machine is CK Worldwide. From a lot of research I feel like for the money both of these are machines that were affordable to a hobbyist, but yet as capable as about any pro would need.  Attached some links that may help.


https://www.youtube.com/watch?v=-YkWY3nVAlY

https://www.youtube.com/watch?v=pfORi2F7xWA

Sorry for the late response. When I stated secondaries were closed, I meant they are in spec on adjustment, just to clarify. The truck idles fine, is fine. Timing is good. All settings dialed right in, were normal, and responsive. Steady 800 RPM, 750 RPM or so in gear. No indications of anything amiss.

I only mentioned the AF meter as a possible way to verify the data vs. smell. The truck has only been idled around the driveway/in and out of the garage.  I am only bringing this up because it is odd to me. One would think if it is acting right then ignore it, but man....it smells. Water temp solid, oil pressure solid, purrs, cranks, throttle response(unloaded) is great.....just a stinker.  Very well could be that all is fine and it is a by product of not being ran. I will take the stuff into consideration. Just making sure there may not be a smoking gun before I take it out on the first shake down run.

I am not sure why all the surprise. We should all have known this was, or is, coming. Home values up 35-50% in less than five years. A truck is now $70,000. Food, etc. double. Building materials...up 50%. Insurance is a business model, and they have to make money. When inflation hits, it hits them as well and that is passed on to the payers...i.e. us. Best advice I can give is shop it. I have had good luck with a broker. Also keep in mind that with insane inflation that means deductibles should rise equally. 500 is now 1,000 etc. With that, one would think it would keep the playing field somewhat level with simply increasing your deductible, but it won't.
Now if you want to be real upset...let us talk taxes! Their 20% is now a bigger dollar value simply based on rising cost. We are not going to see any help from that.
Like MStang said, the auto side is a racquet in itself.
I for one do not advocate for not having insurance. You may go on for years not needing it, but the one time you do need it for a major event it can really impact your livelihood.  Work it so it works for you but things are way to pricey if you do not have the money set aside to replace it. Just my .02 that is now .06 or is .0001....guess it depends.