well, you seem to have a great setup already! just waiting for some hp! looks good. you def. need some good heads and maybe a custom cam though. i think it really depends on what sc or turbo you're planning on going with in the future that should decide what you do now....
one thing i dont see is UD pullies, or a 3g alt., (which should be a priority with that efan, i'd think)! many say ud pullies dont do anything, but it's by far one of the best bang for the buck mods i've done. $100, and i could feel the difference more than some of the "supposed" hp gaining mods i've done. jmho... looks like you'll also need some exhaust work if you're planning on some bigger hp, but that also is a personal preference you need to decide...