Anyone have any thoughts on these deatchswerks injectors http://pages.ebay.com/motors/link/?nav=item.view&id=311084741113&alt=web

I'm looking for alternatives at the moment. Currently have a set of decapped lateral injectors, but they flow 800+ cc which is way too big for my requirements (less than 450hp).

 

I should also mention I have a fuelab FPE, so if I run say 550cc injectors at 4 bar, that might get me there.... I understand 550 injectors at 4 bar would flow roughly 635cc, which should be enough for about 470hp at 100% duty.

however, are eg pinks 505 or 550cc? I can't find a definite answer anywhere, and I see 505 and 550 bandied about as a flowhole rate for the sti injectors, and one looks like a typo of the other...