What is it that makes one carb have that wonderful deep sound at WOT, and another one not? My '88 Gran Fury (old cop car)with the factory 318/Quadrajet was music to my ears when I floored it. Nice deep sound I grew up loving! The 360 crate motor I put in has a Holley 750 #3310, and does not come close to sounding like this. Same air cleaner is run on both. I want that sound I love so much. Thanks.