Not running right

Ok, so I finally started to work on my old truck to get it road worthy. It starts up fine, but only runs on full choke and any throttle kills the engine. The carbs are mikuni sidedrafts, which I just cleaned the jets on, and I just installed a new Holley Red with regulator, through which I run 7psi fuel pressure. Any suggestions?

check the floats, needle, and seats to make sure they are free and clear. 7 PSI may be a bit high for the carbs, but that would not cause your problem.