4a-ge, and an argument help me

[The Big Yin]

ok gotten into a bit of an argument with somene

he is saying that 200bhp from a 4a-ge is going to be expensive to build and maintain, and is going to have a knife edge powerband like a vtec, and not all that reliable


i beleive that a 200bhp 4a-ge will have power throughout the rev range, and will be reliable

as my car sits just now i have power from about 4300rpm to 7700rpm


the way i see it
ITB set up
mapable ECU like vems
cams
manifold
exaust
filter
uprated fuel pump
adjustable fuel regulator
take out viscous
lightweight alternator pulley
remove aircon

what am i missing

and what aare the views of others?