83 xjs fuse blowing and other things
 

i bought an 83 xjs that had a v12 in it and someone put in a chevy v8 and turbo 350 trans,here are a few issues im having

1-it started and few days after i bought it, the guage fuse blows, it had a 20amp in there ,so i guess it must have happened before,when i replace it sometimes it blows with in a few mins or might last all day driving,the fuse box around where the fuse plugs in is melted some

2-same thing happend ot the ac blower,bit i replace that and seams to be working fine but it is melted a little around the fuse area

3-signal will not turn off when turning left