M122 is standard Roots. TVS is the Twisted Vortices. The TVS is WAY better. Some say better than equal size twin screws.
Thanks, saw that thread but this thread seems to be further updated.theres a list on nhtoc as well
#1http://www.nhtoc.com/photopost/data/1126/pro-side-by-side-7-sec--DSC_0674.jpg Cain Brothers Racing - 7.79 @ 174.75 28 Aug 2010 >90F, >900' - LightningFest 7 Pro-Truck Many people ask, "Who has the Fastest Ford HD Trucks?" Here is your answer! Drag Racing 1/4 MILE ET. LIST 7 Second...www.nhtoc.com