Shes alive an shes stayin alive!!

well, as i just tuned my car up, and i see soooo much of a difference in her, i can vouch that plugs, wires, and generally good ignition will make the difference... as for the tank, my cousin has an 82 f-150 that he put a 351 windsor in. when he put the motor in, the truck would crank up and run for a few seconds, and die. he finally put a collector thing from a tractor (the clear catch basin that you see on the side of the motor on a tractor) inline with the fuel line before the carb to catch all the rust and stuff from the tank. it solved his problem, the gas runs clean, and the tanks must be clear.
you take what you want from what i said...
maybe it will help you out :)