I've had this problem ever since I rebuilt the engine, its running a Holley 600cfm and has mechanical points. Whenever you hit the gas, it starts accelerating really smooth and clean, then you can feel it bog down and hesitate. There's a little shudder that comes with it, my theory was that the points were bad, so I had a new set put in (I honestly dont understand them so much). However it still does it. I adjustesd the carb thinking maybe it was running too rich, but that wasn't it either. I'm just at a loss, anyone ever had the same problem?