i recently bought a used header that i was told would fit all d-series motors, but to find out it doesnt fit my d16 sohc. when i placed the header gasket up to it the bolt holes are slightly off but the exhaust holes are way off, if i line up the far left hole its perfect, but as you look right it covers up more and more of the preceeding exhaust holes and by the furthest right hole it is half covered up, i then tried to mount the header to a d15 and again same problem, so if anyone could give me measurements on maybe b series or other honda header holes(distance between each exhaust hole, size of holes, etc) it would be greatly appriciated. thanks B
