im installing an engine in my firebird and it doesnt have any wiring at all. i want to install toggle switches for everything. so i was wondering what gauge wire i will need and what amp the fuse will have to be and the size of the switch. and will i need to run a wire from battery to the distributor? its also a computer controlled carbureted engine will i be able to use this distributor or will i have to swap in a vacuum advance one?

 

If you plan on having the engine fire up.

If you don't understand the basics of automotive wiring ( as evidenced by your question above )
then you may be out of your depth on this project