A Mustang magazine actually tested a lift plate years ago. They bolted an aluminum intake to a fixture and hooked up a load cell to the plate and started pulling. At 6000 lbs. the eye in the lift plate failed. They installed a more robust homemade plate and pulled again. The carb studs started to stretch at 8000 lbs. The threads in the aluminum intake never failed. You can lift your car with a lift plate on an aluminum intake.