HELP! Picked up a 87 400s 4 banger, only 76k on it for $400. Thought great deal... Had an issue it would die after a short run and have to wait to restart it. Replaced Fuel pump, filter. Now runs like a diesel missin' on half the cylinders... up to speed it evens out... Guess i need a new or reman Fuel Dist...WHO HAS A GOOD ONE?