guy get that glazed over look when i tell them it the same guy running the machings for a oem valve job 185hp v8 to 1000hp+. the work is held to the same spec as if it 2.500 intake valve or 1.950 intake valve . i can take more brakes take a longer lunch but when the machine is set up it running it clips right along and is right as i can make it .i could do head work all day .but boring engine blocks brakes up the week . hey jerry i have a new 351 ford iron boss block ford claim it made out very strong iron? i deck it cut much the same as all Dart stuff i think dart use the same fourndy as ford see alot of McC on iron castings ? .honing blocks out realy is starting to beat me up that about the only job if v8 i save to the end of the week i have two days for rest