In your first post above you said,
Quote Originally Posted by 68bbccamaro
The car fired up but the carbs were leaking(from where I do not know I was not there.) The car was built and tested for around 2 hours before being put into storage.
You're gonna want to be very cautious about lighting off an engine with a known fuel leak, and I'd want to be sure to have a good fire extinguisher in hand, just in case. Like Mike said above, you sure don't want to set that beauty on fire and turn it into a "...toasted chevy". The Marvel Mystery Oil is often used to soak rings in an engine before trying to break it loose, but in this case you're using it just to have some lubricant in the cylinders for that initial crank, right? I'd use one of the lever action oil cans that shoots a nice stream, and give each cylinder a couple of pumps towards the uphill side of the piston, and let it flow down around the rings. No prescribed "right" amount that I've ever heard. If you were trying to free up a rusty engine you'd try to fill them more.

When you say it was "tested" does that mean "driven", or simply that the engine was run to break things in, get it up to temperature and make adjustments like timing, float bowl level, etc, etc? Since you've just bought this car, are we to assume that the game plan is to get it running to check out the engine, then load it on/in a trailer and haul it down to Austin? Are you planning on driving the car any, or just get it fired to hear the engine run? Just curious.