Thanks, Paul. I went with the one with the cleaner just because I think the bike sat for so long. I'm not sure what the previous owners did. When I got it, the pulleys and belt were broken. I don't know how long it sat after that happened. I will spend some time fixing these things when it gets too cold to ride soon.

Having not done bike repairs before, I see it as a learning curve; at almost 60, I try not to look at it as 'old dog new tricks.'

I appreciate everyone's help here, and I have 'bought the t-shirt"

When I did r K&N I kinda regretted it. The cost for the cleaner,oil,and filter versus any gain that I honestly couldn't see,, whatever it was it was a lot smaller than the cost.. Whatever,, IF you're the owner of a cleanable ,reusable filter,I hope you kept the old paper one. Blow it out and slap it in. You don't have to wait for your other one to dry.
I wouldn't do it again.
Everyone knows how important exhaust is and that is where folks spend time and money. But at least exhaust is Forced, and our engine design isn't the best in that area. But intake theory is not widely studied. I found some articles on it and the one thing that really stands out is
Having at least enough intake volume between the filter and carburetor to fill the cylinder is your friend. More is better.