i need info on changing the couple of wires from the plug at firewall to dist. and starter what to change or a FREE site that has diagrams to view

This is a conversion done on a 74 model Nova.

http://rmcavoy.freeshell.org/HEI.html

Points :
http://rmcavoy.freeshell.org/diagrams/points_wire.gif

HEI :

http://rmcavoy.freeshell.org/diagrams/HEI_wire.gif

Hope this is what your looking for..

Rob