Another question: smoke comes out of my exhaust in the morning. I was told that is a sign that the 350 in my 1988 full-size Jimmy is showing evidence that it will take a dump, since it is approaching 180 K miles. I'm starting to save $ now for that rainy day, and I want to know where I can find out my decent options for a new engine when it happens. I get about 12 miles per gallon now, and I want to put in a good (preferably bulletproof "so to speak") engine that will provide much more horsepower and torque at similar or better levels of gas consumption. Can I actually aim for a 2001 350 engine? (and possibly the 2001 5 speed tranny to go with it), I really don't know what all my options are and I want to be well informed far before I ever make a decision like that (and so I know how much to save) thanks to everyone!! FroM Dave.