Hooiser QTP here. I have run them with and without tubes....they hook well either way, but I prefer to run them without tubes. No issues holding air, I think the tires lost about a pound when it sat for a month.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
