[Jim Holden]

Do not use the lift jacks. While the bolts could be changed to Grade 8s, the connection to the chassis is not strong enough (IMHO) to prevent things from bending and perhaps cracking the fiberglass, etc....

Use proper jackstands under the chassis frame. It's one thing to come roaring into the pits at Riverside Raceway (circa 1964) to change tires, it's another to be lying on a gurney under a car supported only by a couple of bolts

Jim