John Glock

Hi guys,i am building a new engine for daily use.I have p30 ecu chipped and full exhaust system.I picked a b18c4 block stock to the bone except arp rod bolts.The head will be a b16 port and polished with 3angle job and gsr camshafts.I am thinking about 3 scenarios
1- Custom itb(250e)
2- B16a2 intake maniflod with b16a2 stock throttle body(50e)
3- B18c typer maniflod with an no name after market throttle body i found in the used market(250e)
I am taking your opinions

John Glock

Is there so big difference in ps output between b16a2 and b18c type r maniflod gain in this horsepower class (200ps max)