I'm constantly changing my mind whether to the Edelbrock, Demon, or Holley. Right now I'm really tempted to get the Holley 670 CFM (part # 0-80670). I'm going with the Weiand Stealth Intake manifold (#7517). So what do you guys think? My 'Stang has a 351C 2bbl. but I'm going to make it into a 4bbl. Its a daily driver, but I still want as much HP and Torque as possible. Thanks.