My Jones Cam Recommendation

It’s unlikely you’ll ever know what’s “best”(single vs dual pattern), unless you test a bunch of cams yourself(or duplicate something exactly and what you’re copying has already had that question sorted out).

You’re going to buy one cam and run it....... and unless it seriously under performs...... you’ll likely stick with it.

If I’m not mistaken, the TF ex flow numbers for that head are achieved using a 1-7/8” flow tube.
So, with your 1-5/8” headers...... you won’t have ex flow quite as good.