This is a NO-WIN post for me. I make it anway, out of concern for your safety and those around you:
Definitions: PLUGS are rubber cords that are inserted from OUTSIDE the tire, usually with a punch-like device that leaves the gooey plug behind. You snip off the end. For a high-performance car like a VIPER, to be driven in a performance manner, PLUGS should be considered a TEMPORARY REPAIR !
PATCHES are inserted from inside the dismounted tire carcass, after buff-n-glue prep of the inside area. These patches are all about the size of a silver dollar. Modern patch-plugs have the best of both worlds: a plug-like ****** that does NOT need to be cut off....or a pull-thru plug attached to the inner patch like an umbilical cord. Patches and Patch-Plugs are considred to be permanent repairs.
Some venues (Silver State, Pony Express) expressly PROHIBIT PLUGS OR PATCHES.
Viper Days says: Plugged tires are discouraged, but allowed in Green Group Only (novice) WITH an instructor who is capable of "SOTP" feel on a potentially deflating tire. Patched tires OK in non-race events. VRL patches prohibited.
Lateral carcass and tread stresses and heat ON TRACK are just too much for a plug-only quik fix. Personal confession: I have driven many PROFESSIONALLY PATCHED VIPER TIRES during on trcak events, including Pace Car Ride-Alongs. I would NEVER do this with a plugged tire.
BE SAFE OUT THERE, PLEASE !