there is a lot of things that any car,goes thou, with the age of our gtos,a lot can, and, has happened ,my 1st question is do you know any past owners? #1 never seen a factory mistake,on a engine myself,#2 1st week is pretty short,but not inpossible,haveing the a.i.r intact is really good,without seeing your 66,your block has been changed,have you looked under the gastank, or carpet,not going to give any more than the phs,but still good to have. hope this has helped. p.s what colar combo is the 6.
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