Newbie Question 2: Weber Carburetors Options

[amfab]

I just bought a 74 2.0. Previous owner says previous owner rebuilt it out to 2.1 a few years ago but there is no documentation. Regardless, it IS a GA with 3 bolt intakes so I will assume at least 42mm intake valves.

It came with dual Weber 36idfs with 32 venturis.

The motor seems a bit anemic at the higher RPM. To me—quite an amateur at this kind of stuff—it kind of makes sense because the throttle bodies seem a bit small for the motor (it seems that a lot of the type 1 guys use 36idfs on sub-2 litre motors).
I just had the car tuned up and it runs very nicely, but not a lot of power and it flattens out fast above 4kRPM

I considered megasquirt, but because I have linkage and manifolds I was thinking going the easier and cheaper route of 40 or 44 idfs.

After doing a bit of research, my thoughts are either 40idfs with 34 venturis or 44idfs with 36 venturis. Just a little more oomph will be able to carry me until I eventually do a six conversion in a couple years. Are 44idfs too much carb for the 2.0 (or possible 2.1)?

Unfortunately, there is no documentation on the cam either. I (and my mechanic) are thinking its stock or close to it.

Any advice would be greatly appreciated.

Thank you

-Andrew