We did a comparison of the "185's" and the 190's on our dyno using a 93 test mule.
The label of the 190's is more a description of the HP difference between the two injectors... . as I recall we ran 5-7 RWHP more with the 190's, as opposed to the 185's.
Also, this sometimes gets lost in the journey toward more HP and more fun... . the Lucas/POD injector has as different tip design than the other injectors. It is "large sac" type injector.
Basically this results in the injector releasing it's fuel charge and closing off like a normal nozzle BUT... the tip design retains a minute amount of fuel in the "sac" and that last bit is not under as much pressure... this results in a dribble or poor atomization which in turn results in the haze that they are commonly know for.
The POD also flows a bit more fuel than the 2nd gen 370 performance injectors when both are compared in "stock/factory condtion".
You might think that if you raise the pop pressure on the POD that it would help compensate for the haze issue. Well, I had a set of POD's retested, flowed/reset to 270 bar... .
I regret that I did not see any amount of improvement in the haze/smoke condition at idle/low boost fueling.
There is, I believe, a down side to that experiment... If you have an "experienced" pump (read: original) it will place a fair bit more strain on that pump, particularly when you raise the timing to help compensate for the higher pop pressure which retards timing.
I would not suggest doing this (raising bar values) over 255-260 bar unless you are running a fresh VE in your truck... mind you, that's only my opinion and I did NOT do any dyno testing to see if there were other measureable results from this.
pb... .