I will be putting in a fuel pump cut off switch soon into my stang to prevent theft and lower the insurance 5%. but the question I have is in the instructions I got off All Ford Mustangs was that the guy used a 30 amp switch, isn't that much higher than necessary? Also how much is the fuel pump, i figured like 20 max under a load on my 190lph pump. Also if anybody has done this can you give ideas for the best location for it or anyhting with the install. Thanx.