Seems to me that what you could probably do is disconnect the pedal from the linkages, then measure the travel distance the linkages move from full height to fully depressed. Then measure the travel distance of your carb thats necessary to get it fully open...and then compare the two. If the pedal distance won't cover the full carb travel distance needed, then I would think a different rod length/linkage setup would be in order. I wouldn't bend the pedal for safety reasons, but replacing it might be alright, provided it doesn't create an uneven or crooked top to bottom push.

Not sure if that helps at all...just brainstorming, and its early yet, so the brains still in sleep mode...