ATM/Holley verses Carter 625 AFB

My carb is pretty fat down low, so I’m sure that hurt torque below peak.
It could have hurt the entire pull because it was pretty consistant.

Some time back I started a thread sharing an overlay between rich pulls, different carbs. The power was similar.
But changing the jets on the smaller carb made a huge difference in power.
Here's how much was gained by changing jets.
70,74 to 66, 72
View attachment 1715473374

For the bigger Franken carb, I don't have a back to back comparison, because there changes to exhaust and timing, and then corrected the AFR drift in the secondaries.