say i wanted to do a cr-vech swap a b20b block with a b16 head what kind of engien wiring harness do i need and ecu do i need im not realie sure do u just use a obd 1 vech harness and a obd1 vech ecu or how does that go about and would i have to change on the motor like the altinator and so for that because i wanna no before i buy this also does the b16 head bolt right up i heard the valves dont mach up or something like that thanx