[blykins]

Let me say a few things about the SFI rating.

All of the Q/T bells pass SFI testing, which basically means that they can contain a flywheel explosion at the specified RPM.

The bells that are not SFI rated usually don't have the bolts that secure the bellhousing to the block plate around the bottom.

For instance, there are two SBF/TKO bellhousings available from Q/T. One of them is SFI rated because it can be secured around the perimeter. The other is not. Most Cobra guys go for the one that is not, because most people end up trimming the bottom of the bells off anyway for ground clearance.

With Quicktime anyway, just because it doesn't have a 6.1 sticker on the bellhousing, doesn't mean it won't protect your legs.