aight so im taking out my gsr motor so i can send out the block to get it fully built for boost...im putting in my lsvtec setup to run for a while until my block is done...my lsvtec setup is a b18b1 block with a b16 head....some problems i came across was the alternator was different cause the plug was different, theres no knock sensor in the back of the block and there isnt a harness/plug that is under the alternator like the gsr block...i have a 97 gsr...can anybody help me out and tell me wat these plugs are and if i need to have it plugged in or not..imma be running a obd1 p72 ecu