Ok. I went wheelin this weekend. After I got a stuck in this huge mud/water hole my truck ran like [darn]. Later on I noticed it let out a puff of a blueish smoke. Then I noticed a ticking sound. So I checked the oil. I was 2 qts low. It was full when I left on the trip. So today I pulled the air cleaner out. It was filthy and pretty much collapsed. So now I have all fresh new fluids and filters. It still puffs and dogs quite a bit. What are the best and worst case scenarios for the problem. I really don't want to sink a bunch more money into it. I am trying to get my damn scout done. By the way, the motor is an 88 TBI 350.