So just purchased a 1993 Z28 with 60,000 miles on it form my buddy. He didn't drive it much. Little quick history before I get to the problem. Its a 2 owner car, I'm the 3rd. Very little miles put on it in last 14 years (17,000). My buddy was driving it and put a fresh tank of gas in it. Drove it about 3-4 miles, no problems. gets up the next morning and it starts fine and goes about a block and then sputterers and dies. He limps it back home and parks it and it sits there for 2 months. he puts a can of seafoam in the gas and it starts right up and will idle but when you put it in gear (automatic) it dies. If you try to drive it it will just die. So we make a deal for me to buy it. I go down to buy it and now it wont even start unless you hold the gas to the floor. It starts and blows nasty black smoke out. Just running really fuel fouled IMO. I trailer it home and have so far changed out the fuel filter and removed the cat(thought it might be plugged). Also tried starting it with the MAF unplugged, still not working. Not sure what to look at next before I start throwing parts at it. Any suggestions would be great as I dont know these motors at all. Im a Ford modular/pushord guy. Thanks.