If the tank had rust in it you might want to remove and clean out the carburetor. Rust dust will get past many filters and settle in the carb. Surplus City Jeep Parts probably has a Jiffy Kit for it (which will have all of the gaskets, a needle and seat, and other parts you need). Jiffy Kits also tend to have extra parts for other models to add confusion to the project - carefully check each old part to its new replacement and be sure all holes, etc line up. Do NOT run wire through any holes that are calibrated (like near the main jet) unless you are very careful not to mar them up. Also, be sure there are no other fuel filters in the line (which could be clogged with rust). How's the fuel pump? It may need to be rebuilt also. The old diaphrams generally don't like the new gas. There could be a screen and sediment bulb on the side of the pump. Be sure this is cleaned out too (the screen is at the top of the glass bulb, in the "roof" of the bulb holder). Hope this helps... Best of luck -John