Fueling & Injection - What Size Injectors?

Alright guys im to the point of finishing up my fuel system, and i have a LQ4 6.0L with a comp cam .614 lift cam, ls6 intake, and ported 243 heads, running a holley 255 pump in the tank. How big of an injector should i go with and any recommendations on where to buy from??

http://www.nastyperformance.com/shop/lucas-32-lbhr-high-impedance-fuel-injector-ev1-connector/

32# should be plenty

I buy from fuel injector connection. thats all they do. great customer service.