Im new here so bare with me. I have a 66 GTO but have a 68 Pontiac 400 motor and have been reading on this forum some time while restoring her. I finally got motor rebuild about a month ago but I'm getting hesitation - not all the time and not at idle. She ran beautiful for about 40min last weekend then suddenly started with the hesitation. I currently have Edelbrock 600 (1406) but after researching think maybe the accelerator pump or float adjustment. I don't want to go through all that only to keep having same issues. I know y'all are thinking whatever you prefer but I also know a Pontiac is not a Ford. So I need to know from Pontiac people what they suggest....