Thanks Jeff.

I thought that myself. I'm glad you help
confirm it. Think I will have the inject.
pump checked first. I did take out the
injectors and had them cleaned. They were
fine according to the man that tested them.
I also changed the fuel filters. It does
have a bad overgrowth of algae, but i woulnd't think that would affect performance.

Do you think it may be simple adjustment in
the pump (timing?) if that's the problem? I sure hope i won't find it needs rebuilt!