help me choose a carb

I think the old Holley 750 is a great carb. Being it is a 4 speed a puddle dumper would work well..... although if it is primarily a street car that you put miles on I would probably go vacuum secondary.

I have ran 3 carbs on my 340... Holley 750 vacuum, Holley 800DP and the original AVS.

All 3 work great for driving around. The AVS is small for the engines state of tune but cruses around nice.

The 750 vacuum, I bought new about 15 years ago, has been on about 4 different cars.... I have never touched this thing.... Just bolt it on (check float level) and go.

The 800 uses a bunch of gas but it was jetted on a dyno back in my cars track days This is what I run 95% of the time.