Quote: Maybe that explains why when I took the Eddy off of mine and put on the 650 Holley the popping only went away after I jetted up the primaries. I like the Eddy carb but I'm just not as up on tuning them as I am the Holley.
IMO there's a whole bunch of carbs running lean nowadays causing all kinds of problems, like overheating, running poorly, burning off header coatings and more.
10% ethanol needs to jetted up over straight gas, but lot's don't believe it because of some electronic gismo that is not accurate on our old cars and motors.
Edlebrock 1406 carbs are way lean right from the factory, you need to jet those up before even putting it on your motor.
I like the Eddy carb but I'm just not as up on tuning them as I am the Holley. 
