F1Scamp Just conducted a test. Seems his new thermoquad car can't run with his six pack car despite them having the same engine. So he swapped the six pack on to his 71 340 Duster and ran it at the track. The car picked up 3 mph over the TQ. Now there was a elevation differance of about 2000 ft but that doesn't equal 3 mph. Keep in mind the TQ intake is all tricked out and the Pack is stock.