ATM/Holley verses Carter 625 AFB

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.


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.


Once I get some baseline tests done I’ll put the Carter back on and fatten it up a bit. As long as I can find my Carter jets.