If you're going to try and tune the carb, don't forget the step-up springs. They can make a big difference in how lean/rich it runs. Edelbrocks (in my opinion) don't usually require too much tuning out of the box, but Holleys take a little bit more tinkering to get right. Since you've already decided that you'd like to tinker, have you thought about switching to a Holley (I'm NOT trying to start a Edelbrock vs. Holley here, I'm just making a suggestion). I've had luck with both types of carbs. Good luck.