S13 180sx keeps blowing ignition fuse

[tilap19]

My ignition fuse keep blowing on a nissan 180sx 1991. It's happening while driving sometime my rpm gauge freak out for 2-3 second and the car sputter and come back to normal after. And the last time i took the car for a drive the rpm started freKing out and the car just stall and won't start again. I took a look in the fuse box and my ignition fuse was blown. Replaced it, started the car, made it home. I went to auto part store to get some spare fuse and on my way there i blew 2 more fuse. Now the car is parked in my drive way and i dont know where to start to find the problem. Probably a grounded wire but its intermittent so i don't know how to find the problem.