Ok I found some 180degree thermostats http://www.pontiac-autoparts.com/partslookup.jsp just put in the year and make and all that crap and go to the cooling category. One for a 87-91(don't know if it'* the same as for a later year) is $8.08 for stant superstat and $5.72 for stant reverse poppet. Or you can go stocker and get a 195. Just thought I'd help you all out. I think they have sealed power stuff on there like cams and rockers etc.