Hi! first post here, was hoping for some advice. i have a 1990 honda civic si, and am swapping on a d16z6 vtec head. i am planning on just using an rpm switch for the vtec solenoid, but also want to tune the ecu to make more power. also, might use a skunk2 stage 2 cam. any help is appreciated!

 

Forget the RPM switch and convert to OBD-1 and get a real tuning solution.