I got sick and tired of taking my various Holleys apart for some reason or another over many years and decided to try Edelbrocks - and have never looked back. All were taken out of the box, installed, the key turned, the idle speed set and the car was driven. The supplied Owner's Manual shows you how to optimize the tune, but only if you want to.

The only problems that I've EVER had with the Edelbrocks is dirt - and that isn't the carbs fault. They do need a good gas filter


Negatives(my history):
1. Holleys leak somewhere - always. There are too many below the fuel line gaskets not to dribble somewhere
2. Holleys dump fuel on your intake every time you want to do some tuning - regardless of tin cups, rags or whatever you have to catch the fuel.
3. Holleys (4160's) are the only carbs that have tried to burn my vehicles to the ground when an O ring has split on the fuel cross tube (3 times). I ended up using only 4150's (or modifying 4160s with dual feed float bowls) for this reason.
4. Can be a bit** to tune correctly - but a $20 book will tell you how.

Positives(again, my history):
1. Parts from many sources are readily available for tuning.
2. Easily tuned, but see #2 above
3. Lots of them at swap meets for 'spare parts' (Hmmmm, is there a reason - maybe the just wear out)

Is a Holley a good carb? It sure is - and it will be every bit as good as an E-brock, but IMO, will need more maintenance for daily drivers