Before you change the carb and intake, change the fuel filter, check fuel pressure at the carb, and make sure the ignition is up to snuff. All could contribute to poor running and bogging. I guess I would check the fuel pressure during the bog first.
I am going to put a Q-jet and manifold on my '69 along with an HEI system. It runs fine now, no problems with the governed 2 barrel other than no top end and very poor mileage. Hoping to improve both. I am gonna save all the old parts.
