help!!!

[turboL]

im down to half a truck. My 76 dodge power wagon runs, but its havn major problems. it has a 440, a facet fuel pump, and a bed mounted gas tank. at first, it just died in the mud, but now its doing it on the street as well. i have to pull off the road, remove the fuel line from the carb, and run all the air outa the hose. then about 10 mins later it does it again. anyone have any sugestions? also, the rings are going. do i need to rebuild the whole engine or can i just hone the cylinders and replace the rings? i really need help with this beast cause its a crazy truck, it just has problems. also, im ona tigth budget, and considering i boutgh it for 300 bucks a year ago, i dont really have alota cash to spend on it