Torker 340 or Torker 2? I remember another member here who went faster with a Torker 340 than with an airgap, but his overall combination would have favored a single plane. Seems like he may have went from 11.9 to 11.30 in a four speed duster with 4.30 gears, but It wa a while back when he had posted. At the level where you need a full on single plane, the Weiand 7510 or 7545 "looks" like it would be the the most efficient of the street oriented (exhaust crossover equipped) single plane intakes, but the Torker 2 looks pretty good, too.