Any "holes" that have bungs in the floor pan, usually steel and sealed in with sealant were a production aid to allow the body to sink when dipped through the metal treatment process in the paintshop, they were then sealed for life, as the floor pan is an integral part of the strength of the body removing the bungs will weaken the structure, as for raising the body with a block and tackle in the manner you suggest would damage the floor pan !This is my first, probably of many to come, post on here. (Apologies for the split infinitive)
A fellow MGF owner has suggested that there is a rubber bung underneath the driver's seat on my 1999 car that can be pushed out and a block and tackle utilised to raise the car up to 90 degrees.
Is this correct and is it likely to do any damage?
Many thanks for any help and advice.