Yes, to address all your comments, I seem to run on the rich side, and have experienced some hesitation when at speed and step on it. It feels like it is starving, yet there is all that carb up there!!
I suspected there is a problem with the secondary's, but I didn't think that they could not be opening. How could that be - not enough vacuum to open them?
Jeff L. Davis, Wellington FL
1956 F350 Dually Stakebed