24's seem on the small side? Are you planning on running an FMU? 36's would be a more approperiate size for a mild setup. You can also use #28's from a grand national or #30's from the ford thunderbirds. The GN injectors have a nice bonus of going "fat" on the top end offering more fuel.
24's are good to about 350
WHP NA. You car at 6-8
PSI should make that no problem but you might be playing with fire wich such a small injector. Blow HG's are a PITA. I would try 19's with an FMU or #36 lb/hr straight up IMO.