If I had the money to try another carb I would but that’s not going to be on the budget for a long time lol.
Although running a 650 on a very mild 360 magnum seems to be universally agreed on. Holley recommends it and seemingly everyone who I’ve talked to both on this forum and in person has said that a 650 is a perfect fit for this engine.
Given that in most cases an engine running happiest via idle screws also happens to be its peak vacuum point, I’m just going to tune it the way that was said earlier, and then just look at the gauge and see what it says. I’m really going to have to try to squeeze in working on the carb though because of how quickly the weather changes down here lol