[Healeys] Wiring Questions

[Marvin James]

This week I should get my BN1 chassis back from the body/paint shop and
start re-assembly. Yee-ha! This was someone else's abandoned project and
came with a lot of work done and some new parts. Most of the work I have
redone or undone. It had a new wiring harness installed (I removed it) and a
BN2 gearbox. I would like to go with the BN2 single O/D relay setup. So,
here's my question(s):

Should I go with a BN1 or a BN2 wiring harness? I am willing to sacrifice
(eBay) the new harness that came with the car which I assume is a BN1. Any
easy way to tell what it is? I assume I need a BN2 O/D harness, I have a new
BN1 Harness. Any other known problems I will encounter?

Marv J