Still hesitating

A bigger carb is NOT necessarily the answer to your situation. A bigger carb does NOT mean more fuel. Bigger jets and smaller rods do. If that carb can't be jetted to make your combo run, I suspect there's another issue.

Others will have other opinions, and I'm certainly no expert on which carb is best for you, but remember, large carbs aren't the best for street use.




And as I read your post, you ran the largest jet smallest rod you have available, and "viola!"

If you have "viola!", why do you need to change the carb? What's the symptom you're still trying to cure but that you still have "Viola!"?
I guess I just figured that if this is the biggest I can go on this carb, then a slightly larger carb would allow me more "play" as it were. Truck stills a bit sluggish, but I think that may have more to do with how I have the TV cable set... there is still a good 1/4 inch of "play" / run when the throttle is at WOT. But I feel like if I pull more TV cable then my start off of idle will be drastically changed... and I've already turned the line pressure up 1 1/2 turns. Also I know for a fact this is the wrong cable as it came off an A500, and this is an A518 46RH. I may just split the difference in the cable and see how it acts.