i plan on building one of these h23vtec motors,not really sure about all the stuff i will need besides the h22vtec head and gasket. do i need the ecu for an h22vtec or can i use my h23 ecu...ive heard something about adding 3 wires for the vtec,but not totally sure about what it specificly means.what timing belt do i use, do i use the h23 intake and exhaust manifolds? and do i use the h23 distributor or do i need to find one from an h22vtec motor? I know this thread is old as dirt,but im new to honda building...only done toyota motor builds. so i hope someone can shed some light for me.thanx everyone in advance.