Thanks for the replies, gives me another place to look !

One other thing my buddy just mentioned (his truck) is that the crappy
running usually happens in the mornings and seems to clear up after a bit of
driving.

Now suppose I had a vacuum gauge....What would one check first and how do I
know what the norm would be ???  Does a good shop manual tell this ??  I
have a Chilton's Manual that covers this year but it seems a bit basic at
times.

Thanks a bunch....

JDS