Edelbrock 1460 Carb 1st Test Flight Noise??

Sounds like a vacuum leak. Check all your ports and make sure you plugged off anything not being used. PCV hooked up, brakes, vacuum advance? Also check that you have the rear port blocked with the cap included with the carb. If I remember correctly it does not come pre-installed. Easy to forget if you are anxious to get it on and double check everything upfront but forget about it out back. It would make a very audible sound at idle though...let us know what it is!