Hey everyone! Well, like the title says, my 7.3 bogs down at full throttle. 3/4 throttle runs great, no problem. It use to run fine, till it sat for about 5-6 months with the same fuel. It started running like complete crap till I ran all the bad fuel out, now runs great unless I'm to the floor? Any help? Is there anything in the tanks like a filter that could cog up? Also, I have a bad vacuum pump, I don't of that would cause it too? I don't know.