Good valves

i saw that they had 8 blitzluft valves for 300 bucks. are they any good cause thats a good price. or anyone know of some other valves that they could get me a deal on. in lookin to get some quick. i just dont know of anyone running them. ill be runnin them at 150 psi...not enouf to hop but i still want some fastass valves without breaking the bank!!!