before you jump too deep into the injection, make sure that your mechanicals are in order..base timing (cam to crank), chain stretch, compression, etc. I've seen folks waste good money and time on parts when it was a base timing issue. hope that helps some.

__________________
00' C230K
88' 190E 2.3
79' 280CE (Sold)
84' 300SD
73' 450SE
93' 300E
68' VW Bug (what the hell was I thinking!)
99' HD FLSTF