Which Carburetters for 750?

Ok folks..I have several options with carbs for my 750 Commando...much depends on your feedback. I could go with: Single Amal Mk 1, 30mm or 32mm; single Amal Mk 2, 30mm or 32mm; or fit one of my 1000 series Amal 34mm as opposed to two. OR go with Mikuni set up though I'd rather keep it British...I'd sooner have just the one carb for simplicity (and cheapness)...I'm more interested in good midrange power than top end. Over to you...

First, I'll immediately say that this is not one of the options you listed but if it was me, I'd go with the twin Amals that were on it originally. Superbikes don't have single carburetors!

If you have a regular stock 750, A 34mm Mukuni or 34mm amal MK2 are both fine. Kits come with all you need with many jets.
A single 30mm or 32mm are just not big enough for heavy breathing Nortons.
There has been talk about the Mikuni TM Flatsides lately. Not enough known to recommend.

I recommend you just cut to the chase and get new Amals out of the UK/RGM. Even at their cost that's a relatively cheap fix to what will otherwise be a never-ending headache.

At that point -- whatEVER else you do -- make sure to spend the money on heavy brass/chrome-plated throttle slides. Smooth as glass when fitted.

Thus equipped, nothing can touch the (twin) Amals for performance

To be more serious this time, and follow up to MEHAVEY's post...

Sorted out Amals work extremely well. The 932s (sleeved by the PO) on my 850 will idle smoothly at 600 RPM (though I have the idle rpm set at around 800. They pull like a train through the entire rev range - no flat spots, no weird stuff, no leaks - and, as noted, they will outperform any single carb setup. Yes, it took a bit of work to get them right - all the sealing surfaces were warped from overtightening and there were different jets in each carb (?). Additionally one carb flooded instantly - float level too high - while the other was set so low you couldn't tickle it. But all this is standard stuff with any old carb, no matter what brand. After cleaning/surfacing, all new jets and new jet needles, new float needles and gaskets and some sorting out re main jets and needle settings, I couldn't ask for better running carbs.

I really think you should consider them but, as has been noted many times, we all have different taste and often have different opinions about just what we expect performance-wise out of these old Commandos. Good luck with whatever you decide!