Carb Advice Appreciated

I would put that Thermoquad on there in a heartbeat, on a small plenum, small-runner spreadbore intake.
But I would run a much smaller cam with factory exhaust manifolds.

This is one of very few times I have said this.
If you are running that Purple for the sound, then
IMO,
you would be much better off with a Thumpr/Whiplash type cam, that idles with the sound, but as soon as you rev it up, it's modest roots are revealed. The downside is total sacrifice of the extraction cycle, so it will suck fuel. But hey it's for Sunday drives.....

But, if you don't care about idling like a SuperStocker, I would still yank that purple, and put a 360 2bbl short-period type cam in it. I said TYPE . Now you can run 2.94 rear gears and chase mid 20s mpgs on those hiway cruises.

However, when running short-period cams with iron heads, you gotta marry that with the right compression ratio, to run the fuel of your choice. So you gotta be careful. It is very easy to put the engine into a detonation situation that cannot be got out of with pumpgas. This hi-pressure is also what makes that type of engine such a pleasure to drive.
So
Before you contemplate a cam swap, you will need to know four things;
1) your EXACT static compression ratio.
2) your elevation
3) your rear gear/your low gear ratio, and if an automatic, then your stall rpm
4) what octane fuel you want to run.

But if you ran headers, I would leave that purple cam in there, and install at least a 2800TC with any commonly chosen cruiser gear.