today, a mechanic came up to my house and was checking out the mustang when he asked what kind of engine I had. I told him a 351C and he said he didn't think so. I don't know much about different engines so I couldn't argue, and I got down, wire brushed the block and found that my numbers say KI then it looks like two lines really close together. maybe an H or else two 1's? I don't know. but according to my chiltons manual that means I have a 289 Hi-Po in there. so I was flabbergasted obviously but what choice do I have other than to believe it, I am pretty sure the numbers don't lie. Maybe I was reading the chart wrong though? Maybe I am looking in the wrong spot on the block though? Should I be mad or happy that I have a 289 Hi-Po or what? I am pretty lost in all this engine stuff. What do you guys think?