new T bar

ok so I put in the new torsion bars in the 69 barracuda. I need to move car. the shop manual says not to tighten up and front suspension parts until there is weight on the car and frontend height is adjusted, what's considered weight, I have a block and 4 speed in it right now to gets parts list bought and align things back up. is this enough weight to adjust height. I know I will have to do it again once a complete motor is built and put in place