1972 Ford Ranchero Engine just bogs

I don't quite remember if this has electronic ignition or not. But you should check the ignition system carefully. The coil towers used to crack on those as well as the distributor caps. An easy way to check the coil is pull the main ire and walk it around in a cirle around the coil. If it's cracked it will follow the spark sideways. Kindof hard to do if you've never done it. If it has electronic ignition, then checkthe ohms o hte pickup coil, if it's over 700 ohms replace it. Also the boxes on the fenderskirt used to screw up and we would dump cold water on them until we got them inside and replace them. Also change your fuel filter and make sure you are getting good fuel flow as well as pressure to the carb.