neutral reverse switch or what ?? help

I'm guessing you had a clutch safety switch? Look at your starter relay. The older "stick" relays only had 3 terminals, only ONE "push on" terminal

The automatic and "clutch safety" relays have FOUR terminals, TWO of which are a "push on" terminal.

One of the two push-on terminals gets power "in start" from a (usually) yellow wire, coming from the bulkhead, which comes from the ignition switch, powered when you twist the key to "start."

The remaining "push on" terminal goes to the clutch safety switch on a stick car, or down to the transmission neutral switch on an auto car

In either case, that terminal must see a ground to start the car. On the older transmissions, with only one terminal neutral switch, just run ONE wire from the remaining push-on terminal of the start relay to the terminal of your neutral switch

On newer transmissions with 3 terminal switches, the two outer terminals are reverse lights, the CENTER terminal goes up to the start relay

If you have a 67 trans, it should only have a one-terminal switch

To get your reverse lights to work, you'll have to install a switch on the shift linkage, which may already be there. What are you using for a shifter?

PLEASE hook this up. It is far too dangerous to "forget" that one time and start the car in gear.