The 350SDL had a different engine than the 300SDL as well as a lower RPM redline. The injection pumps also carry different part numbers. Given my luck (or lack thereof) with this car, I'd prefer to stick with one I KNOW will work with the 603.961 engine. I do appreciate the offer though.

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Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)