Another edelbrock carb question!

So turns out the weird idle was coming from a bad cap. Swapped it out and runs great. But the only area now I find scratching my head about is the transition plate! It takes off great off the line. But if I'm cruising in 3rd and drop to 1st, the power hits rights away with no bog but it doesn't really start to pick up until around 3000 rpm! My only thought is that the weighted plate isn't opening fast enough. I've heard of guys drilling out a little weight to make em open faster, any of you guys ever try that? And if so, did it work for you?