Demon or Holley

[72step]

I installed a speed demon 650 in my truck over the weekend, and I got it running pretty good, but it's leaking a little gas. Now I called Jegs and they told me to ship it back to them and they'll give me a refund or exchange. Now before I just re-order the same carb, how much better/worse would a Holley street avenger be??? Might be a dumb question as I've heard Demons are superior, but right now I'm not feeling too good about Barry Grant in general. I mean I just spent $500, and now I have to wait another couple weeks for another carb by the time UPS, and Jegs do their jobs. I've had Holleys in the past and they've been okay, they always run rich but I've never had to send one back. Any input is appreciated..........