Low RPMs on new 4.3L install

by Alan Chapman
(Fayetteville, AR)

I just had a rebuilt 4.3L engine installed in my 1997 19' Chaparral. I had the same outdrive reinstalled with just a rebuilt engine installed.

I used to get 4600-4700 rpm's with just two of us in the boat and now the best I am getting is 4000 rpm's.

Any thoughts as to what might be the problem?

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