B20vtec dyno figures

[Lex_EG93]

heres the list:

b20b8
p72 head
p72 IM
hondata s300 ecu
itr 4.7 box
GE head studs
itr driveshafts & s/linkages

now planning to bore out the block for oversized pistons and chuck in rods as well (dnt know what rods to go with)

am i on the right track?

or should i go for b16a head with modded cams or itr cams

which head should have more power gain?