so im getting parts together to do a ls/vtec swap. i picked up a used b18a for $150 and a gsr head for 300. i was wonder what kind of wiring harness i should use for the build? i know the b18a is obd1 and the gsr head is obd2. this is where im confused, can i buy a plug and play harness for this setup?

 

Use your harness and any necessary adds. Some will depend on what ECU you are using

https://honda-tech.com/forums/honda-...-vtec-2987229/