Sounds like we're starting to reach a consensus here; going to an injector set with a MODERATELY LARGER flow rate should
slightly richen things up and improve Open-loop high load (hard acceleration) power particularly in conjunction with increased airflow (bigger cams, intake, filters, bigger air boxes, headers, higher flow/removed/gutted cats, free flowing exhaust etc).
So here's the $ 64,000 question...
what is the OEM Mercedes or Bosch part number for a compatible injector which will deliver a 15%-20% flow rate increase ?
Do the injectors in some of the Mercedes Models equipped with the 3.2 SOHC motor flow more?
And isn't there a 3.5 version of the SOHC V6 used in SUVs ? I bet
those injectors would work and deliver a little extra fuel!
Let me know what to look for and I'll try to find a working "junkyard sourced" set to try.
Cincinnati Slim