This thread clearly demonstrates (again) that there are many, many modern oils that will satisfy the needs of our engines.

Obviously, some engines have different needs than other engines; wider or tighter clearances, turbos, primarily track use, etc. But the OP is asking about a specific application; his street/strip big inch Mopar. He does not need an overly expensive, difficult to obtain, or exotic oil for his engine. Many members on here prove that every day.

And for his application, why would the OP want any weight heavier than the guidelines that many of us successfully use in this application, which is; At least 15lbs at hot idle and at least 10lbs for every 1000RPM till about 60LBS max. Now, those are guidelines. Not set in stone. But, without some special oiling needs, what advantage would more pressure or a heavier weight oil provide the OP?

Now, it would be prudent for the OP to experiment with the weights to find the right one. Maybe start with a heavier weight like 20w50 or 15w40 and if everything looks good, try a 10w40, and then if all is good, 10w30 or a straight 30. That's the way I have done it several times and have ended up with 10w30 in both of my 500+ inch street/strip wedge and Hemi. They usually hold 20lbs or so at hot idle and usually hit 60lbs or so by 3,500. Been running them that way for years.