OK....I had earlier found a post in this forum where somebody mentioned "install your throttle slides right and it works perfectly, install them wrong and you have problems." Even though I had reinstalled the slides many times, I finally figured out that by flipping the slides 180 degrees (from how my slides were installed) allowed the slides to drop further into the carb body, thereby consuming the cable excess on the the throttle slide. I believe my troubles are over. We'll see how the cable adjusts once running.