I'm in Lake Hopatcong too...any interest in helping a fellow GN guy out? Car just flat out died over the weekend (see post). I know these cars pretty well but am by no means an expert.
http://www.turbobuick.com/forums/threads/car-is-dead-any-ideas.397946/
http://www.turbobuick.com/forums/threads/car-is-dead-any-ideas.397946/