Need help with edelbrock 1406 carb

I can't help but say that I have 3 Eddy 1400 series carbs (pseudo AFBs) - a 600 on a relatively stock 318 and 2 500s on a crossram on my 340, which definitely isn't stock. They have been on these cars for 13-17 years. They went on right out of the box, ran with no problem, had idle mixture and the chokes set and have been absolutely trouble free for all this time. They run great. The 340 even gets 15-16 mpg on a couple of trips last summer (I was shocked!). I know that this is anecdotal, just like the guy above that got a screwed up Performer. I think all in all that Edelbrock makes great carbs that generally run right out of the box without any significant problems.