Need recommendation for a Carb for better MPG!

AJ/FormS said
With a 5-speed manual, your rpm might be 65=2200. Your engine might want over 50 degrees advance.
How much are you running? at what rpm?

My tach weirdly stopped working so I'll have to get that up and running again to answer the rpm question but as I remember, I do think it was about 2200@65.