I don't know anything about the Howell fuel injection kit, so maybe it will serve your goal(s) well. However, I think there might be better fuel injection options and for less money. Something like the MSD Atomic EFI Throttle Body System
, as one example, is similar in its simplistic design, probably flows more air as a 4-barrel which should support more potential hp, and is cheaper.
For the same $1400 there are plenty of 4-barrel EFI options at Summit that won't choke down the Edelbrock 4-barrel intake and take advantage of the high-flowing heads.