BIG High Z injectors

Have anyone heard something about these http://store.summitracing.com/partdetail.asp?part=FMS%2DM%2D9593%2DE303&N=110&Ntk=KeywordSearch&Ntt=injectors+150 ?
Could they really be high Z saturadet?

They are stock propane injectors. Really really big.. You need to be in the 900+ range to even think about them. They are low impedance

I did a car with these that did something like 875rwhp and he swapped to these things (against my advice) and his duty cycles went from like 85 with the 96#'s to 45 with the 160's.. I never did get the car to idle with those injectors.

I dont plan to buy them, i just got surprised when i heard about them, the common talk is that it doesnt exist bigger high Z then 60-70lbs...
Thanks

Don't look like high-impedance to me...

Must flow like garden hose nozzles! Must be Peak & Hold injectors

They are Low impedance