See my thread about the rebuilt injectors with Bosio nozzles done by Greazzer. My idle is now so smooth...similar to this youtube video where the guy sets a cup of water on the crossover pipe and starts his 603 cold.

https://youtube.com/watch?v=xXwO6B1vthY

__________________
RenaissanceMan Labs: where the future is being made today.

Garage:

2017 Chevy Colorado Diesel (nanny state emissions)
2005 Volvo S40 T5 AWD, 77k
1987 Mercedes-Benz 300D turbodiesel, 4 sp auto, 156k - 28.7 mpg
1996 Tracker 4x4, 2 door, 16v, 3 sp auto. 113k - 28.6 mpg

WARNING: this post may contain dangerous free thinking.