[Barry_R]

I am at home right now and do not have the dyno sheets with me - although I usually keep copies at the shop.

In general - if I recall correctly - there was not a single point through the entire pull where the smaller carb had any advantage at all. The gains were fairly linear, with a smaller gain at lower RPM getting smoothly greater as the RPM went up to peak. Peak on this engine was only 6200RPM. In other words (I'm gonna kinda "make this part up" since the sheet ain't in front of me) the motor gained something like 20 @ 4000, 25 HP @ 5000, 30 @ 5500, 35 @ 6200....

Obviously I have no way to quantify the in-car characteristics of the two carbs. Although we threw a few jets & such at each one I am certain that neither was fully optimized - but they were in a very comparable state of tune. Based on this data, I would not personally choose the smaller carb unless it were going into something heavy or with highway gears - like a Galaxie or a truck.