I have just finished restoring a 1969 GT 428CJ and took it out for its first big road trip this past weekend. I had ran it up and down the highway before the trip a few times the and had over 100 miles on it and everything seemed fine, I put over 200 miles on it on this trip and I started to notice a bog right during acceleration in any gear. Most noticeably from a stop, it almost dies going through an intersection but then picks up and runs fine. Even at 70mph and in 4th gear if I let off the gas and get back on it quickly the bog is there but not so much if I roll through the acceleration. I did not notice this when first running it in the days prior but after getting on it and really running it for a day it showed up. I have checked the vacuum lines and all seems well. I have read some information that it could be the accelerator pump or even the squirters? Any thoughts or information would be great.