I believe it is all very relative, reading all the opinions and all.

If there was an issue with heat soak with a 326, 350, 400, 400 HO or Ram Air with long braches, there would have been well known documentation (service bulletin) and or an in house fix from GM at the time.

Then we are left with stock configuration versus modified and within that, old degraded parts versus new. Reminds me of the cooling issues Pontiacs have in relation to the wear (and deterioration) of these parts.

Remote solenoids have always (as far as I can remember) been a cheap fast fix for someone who needed to get their car back on the road, but still negated to address the real actual issue (note, I did not say this was improper). Do I support a remote solenoid use for any car? No. It is an individual choice. I do suppose I can state that with any (I mean any) failure of a designed system to start or cool properly, there may be an issue of worn items out of tolerance or specification.

If one was to properly address a complete starting system overhaul, sparing no expense to a complete and proper revamp back to stock, could one make the claim that a car has heat soak issues and that is a (one) specific cause.

I suffered from heat soak issues with headers. I rebuilt the starter and installed the GM spring and a new solenoid. Did I have problems after that? Nope. 5 years later? Nope. I was embarassed to sit at a gas station and have to crawl underneath the car to jump the starter. I had enough balls and common sense to alleviate the problem with forward thinking and basic drawing board solutions. I had the starter rebuilt, ensured the charging system was optimal and did a load test on the battery.

No problems since.