This may not work for you but I have done it several times:
I too start at the front of my cobra and jack up one side at a time with the trany in gear. Once the front of the car is up I roll my floor jack under my pumpkin at an angle because my fuel cell sets low. I jack my straight axel up both wheels at a time until my tires are about 6-8" off the ground. I use the bigger 4000# floor jacks under my rear axle. I then move to the front and raise my front end a little higher using 2x4 blocks on the floor jack.
I have ran my car numerous times on jack stands without any problems especially after replacing brake pads, clutch, throw out bearing, changing
oil and filter etc. I too have a fairly agressive cam (592 lift and 232 dur) but my engine is completely balanced. I think the key is to be reasonable don't run your RPMS up to 2000 or 3000 because anything can happen and while my car is running I am sitting behind the wheel just in case.
By the way what kind and grade of
oil are you running?
By the way Hoppy I have a very close friend that had another friend at a track event here at Tulsa that checked his brakes after the event. He pulled all 4 wheels off and after checking everything he put all four tires on and only put the lug nuts on hand tight. He then loaded the car in the car hauler and took it home where it remained until he took it to DVSF IV a couple of weeks ago. You got it, during a poker run he was driving through Columbus, Ohio hit a bump, the Cobra bounced up and the left rear wheel fell off. Fortunately, he was going fairly slow and there was no damage other than to his pride. Things are going to go wrong at times it is how you deal with them that matters.
Clois