Trying to decide which SBC air gap style intake is the best or are they about the same the Dart(part#42811000) or Edelbrock (part#7501) have anyone ever used the Dart dual plane air gap style intake,if so how does it perform, I have used a couple of the Edelbrock air gaps and liked them but just wondering how the Dart air gap(Kool Can)intake works since i have SBC Dart Pro 1 Platinum heads and looking for a dual plane intake?THANKS