Thanks for the info! And funny i'm in same boat with pedal. I already welded up the original nuts in firewall... Check out what this guy did with his. Although it doesn't show how he mounted it to firewall, I was planning on modifying the pedal like this to get rid of the adjustable stuff. Then I will probably do the same as 1971Stepside to mount it to firewall.
Pedal Idea:
http://67-72chevytrucks.com/vboard/s...2&postcount=18
