Van that back fires?

[woodstockt67]

I have a dodge ram V8 extended van early 90's with a carborator, and it back fires. If I let it sit for a day or two, then take it past 50mph, it will start to backfire. it will, loose energy, and speed. Then, I have to stop every few miles and start again because the van looses energy and I can't go any faster than 30mph to 35mph while the whole time it back fires. Does anybody have any insight as to how I can fix this problem? Is it the carborator, distributor cap, plugs? What does anybody think is the problem? Thanks if anyone can help, Bill

This ad is not displayed to registered and logged-in members. Register your free account today and become a member on Dodge Forums!