This may sound like a dumb question, but did you bleed both sides of each caliper? Did you use a power bleeder? Manual bleed? Vacuum bleed? Did it build pressure before the swap?
Comp Cams 222/234 113 lsa, 1.8 roller rockers, 2800 stall, Kooks Mids, Borla Catback, Brembos, VMR V710's, Pedders XA Coilovers, Tuned it myself with HP Tuners