read these:
http://www.peachparts.com/shopforum/showpost.php?p=685115&postcount=12

http://www.peachparts.com/shopforum/showpost.php?p=685160&postcount=13

And remember that if you go to angled injectors you need new injection lines, all 6 ($ix) of them

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!