http://67-72chevytrucks.com/vboard/s...d.php?t=524926
vettevet posted great diagrams.
sounds like a couple things, wired wrong and uh....
whatever you have. the ign. should be off to the left not right. center (run)is hot to msd., and temporary right (start) should be hot to starter solonoid
should be no power to start solonoid when key is released...