Hey me again,
i am starting to go through my 450. Is it stupid for a guy with some knowledge and a lot of tools to think i can pull and clean my bosche fuel injectors? The car is very sluggish on take off. This is the first suggestion i have had. Any others?

 

I would run some injector cleaner through the fuel first and see if that makes any difference.If your going to the effort of removing the injectors you might as
well replace them with new ones and then you can eliminate that as a source of your problem.