I have no clearance with my setup. I have a holley 174 blower and a 2 row Griffin giving me 3" if that of clearance in the front. My Engine has been running around 210 with my setup and I don't like running that hot with Alum heads. Should I go to a dual pusher??? I need something that has plently of Cfms. Something that blows hard and keeping it cool. Will I ever see 170 or 180??? Heck I'd be happy with 190.