Chamber design changed for the late heads, in addition to the AIR injection crap plus EGR. My guess would be late head on early bottom end would reduce static compression among other issues.

Truth be told, 103s are so common here in Texas at least, I would just find the proper model you need to save the hassle.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]