For one, I don’t have a 600 Holley. I can’t think of a single instance where I’d use one.
The Carter is a Competition 625 that I think I have close to 20 hours in tuning time on. That’s why the A/F ratio curve is so flat.
I originally tested the Carter against my 750 dyno carb. It needs more work, but I’m seriously considering buying another ATM carb and using that as a dyno carb.
IMO, many guys have a 625 Carter in some form and the general swap is to go to a 750.
I used one of my carbs to qualify my thinking. My carb has more power potential than the dyno carb if for no other reason than the boosters I use are the best on the market.
