I just did a head swap from hell and Im having tons of problems.First the passenger side header was cracked had to buy a new header,then the air tubes on the cats were so rusted when I connected the headers they just fell off,then the grounds on the back of the passenger side head were loose and causing a bad idle,now the damn fusable link keeps blowing. What would cause the fusable link to keep blowing? bad grounds?bad ECM?